summaryrefslogtreecommitdiff
path: root/src/mesa/main/teximage.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/mesa/main/teximage.c')
-rw-r--r--src/mesa/main/teximage.c3563
1 files changed, 3563 insertions, 0 deletions
diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
new file mode 100644
index 0000000..14024fe
--- /dev/null
+++ b/src/mesa/main/teximage.c
@@ -0,0 +1,3563 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5.1
+ *
+ * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file teximage.c
+ * Texture image-related functions.
+ */
+
+
+#include "glheader.h"
+#include "bufferobj.h"
+#include "context.h"
+#include "convolve.h"
+#include "fbobject.h"
+#include "framebuffer.h"
+#include "image.h"
+#include "imports.h"
+#include "macros.h"
+#include "state.h"
+#include "texcompress.h"
+#include "texformat.h"
+#include "teximage.h"
+#include "texstate.h"
+#include "texstore.h"
+#include "mtypes.h"
+
+
+/**
+ * We allocate texture memory on 512-byte boundaries so we can use MMX/SSE
+ * elsewhere.
+ */
+void *
+_mesa_alloc_texmemory(GLsizei bytes)
+{
+ return _mesa_align_malloc(bytes, 512);
+}
+
+
+/**
+ * Free texture memory allocated with _mesa_alloc_texmemory()
+ */
+void
+_mesa_free_texmemory(void *m)
+{
+ _mesa_align_free(m);
+}
+
+
+
+
+#if 0
+static void PrintTexture(GLcontext *ctx, const struct gl_texture_image *img)
+{
+#if CHAN_TYPE == GL_FLOAT
+ _mesa_problem(NULL, "PrintTexture doesn't support float channels");
+#else
+ GLuint i, j, c;
+ const GLchan *data = (const GLchan *) img->Data;
+
+ if (!data) {
+ _mesa_printf("No texture data\n");
+ return;
+ }
+
+ switch (img->Format) {
+ case GL_ALPHA:
+ case GL_LUMINANCE:
+ case GL_INTENSITY:
+ case GL_COLOR_INDEX:
+ c = 1;
+ break;
+ case GL_LUMINANCE_ALPHA:
+ c = 2;
+ break;
+ case GL_RGB:
+ c = 3;
+ break;
+ case GL_RGBA:
+ c = 4;
+ break;
+ default:
+ _mesa_problem(NULL, "error in PrintTexture\n");
+ return;
+ }
+
+ for (i = 0; i < img->Height; i++) {
+ for (j = 0; j < img->Width; j++) {
+ if (c==1)
+ _mesa_printf("%02x ", data[0]);
+ else if (c==2)
+ _mesa_printf("%02x%02x ", data[0], data[1]);
+ else if (c==3)
+ _mesa_printf("%02x%02x%02x ", data[0], data[1], data[2]);
+ else if (c==4)
+ _mesa_printf("%02x%02x%02x%02x ", data[0], data[1], data[2], data[3]);
+ data += (img->RowStride - img->Width) * c;
+ }
+ /* XXX use img->ImageStride here */
+ _mesa_printf("\n");
+ }
+#endif
+}
+#endif
+
+
+/*
+ * Compute floor(log_base_2(n)).
+ * If n < 0 return -1.
+ */
+static int
+logbase2( int n )
+{
+ GLint i = 1;
+ GLint log2 = 0;
+
+ if (n < 0)
+ return -1;
+
+ if (n == 0)
+ return 0;
+
+ while ( n > i ) {
+ i *= 2;
+ log2++;
+ }
+ if (i != n) {
+ return log2 - 1;
+ }
+ else {
+ return log2;
+ }
+}
+
+
+
+/**
+ * Return the simple base format for a given internal texture format.
+ * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
+ *
+ * \param ctx GL context.
+ * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
+ *
+ * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
+ * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
+ *
+ * This is the format which is used during texture application (i.e. the
+ * texture format and env mode determine the arithmetic used.
+ */
+GLint
+_mesa_base_tex_format( GLcontext *ctx, GLint internalFormat )
+{
+ switch (internalFormat) {
+ case GL_ALPHA:
+ case GL_ALPHA4:
+ case GL_ALPHA8:
+ case GL_ALPHA12:
+ case GL_ALPHA16:
+ return GL_ALPHA;
+ case 1:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE4:
+ case GL_LUMINANCE8:
+ case GL_LUMINANCE12:
+ case GL_LUMINANCE16:
+ return GL_LUMINANCE;
+ case 2:
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE4_ALPHA4:
+ case GL_LUMINANCE6_ALPHA2:
+ case GL_LUMINANCE8_ALPHA8:
+ case GL_LUMINANCE12_ALPHA4:
+ case GL_LUMINANCE12_ALPHA12:
+ case GL_LUMINANCE16_ALPHA16:
+ return GL_LUMINANCE_ALPHA;
+ case GL_INTENSITY:
+ case GL_INTENSITY4:
+ case GL_INTENSITY8:
+ case GL_INTENSITY12:
+ case GL_INTENSITY16:
+ return GL_INTENSITY;
+ case 3:
+ case GL_RGB:
+ case GL_R3_G3_B2:
+ case GL_RGB4:
+ case GL_RGB5:
+ case GL_RGB8:
+ case GL_RGB10:
+ case GL_RGB12:
+ case GL_RGB16:
+ return GL_RGB;
+ case 4:
+ case GL_RGBA:
+ case GL_RGBA2:
+ case GL_RGBA4:
+ case GL_RGB5_A1:
+ case GL_RGBA8:
+ case GL_RGB10_A2:
+ case GL_RGBA12:
+ case GL_RGBA16:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+
+ if (ctx->Extensions.EXT_paletted_texture) {
+ switch (internalFormat) {
+ case GL_COLOR_INDEX:
+ case GL_COLOR_INDEX1_EXT:
+ case GL_COLOR_INDEX2_EXT:
+ case GL_COLOR_INDEX4_EXT:
+ case GL_COLOR_INDEX8_EXT:
+ case GL_COLOR_INDEX12_EXT:
+ case GL_COLOR_INDEX16_EXT:
+ return GL_COLOR_INDEX;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.SGIX_depth_texture ||
+ ctx->Extensions.ARB_depth_texture) {
+ switch (internalFormat) {
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_COMPONENT16_SGIX:
+ case GL_DEPTH_COMPONENT24_SGIX:
+ case GL_DEPTH_COMPONENT32_SGIX:
+ return GL_DEPTH_COMPONENT;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_texture_compression) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_ALPHA:
+ return GL_ALPHA;
+ case GL_COMPRESSED_LUMINANCE:
+ return GL_LUMINANCE;
+ case GL_COMPRESSED_LUMINANCE_ALPHA:
+ return GL_LUMINANCE_ALPHA;
+ case GL_COMPRESSED_INTENSITY:
+ return GL_INTENSITY;
+ case GL_COMPRESSED_RGB:
+ return GL_RGB;
+ case GL_COMPRESSED_RGBA:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.TDFX_texture_compression_FXT1) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGB_FXT1_3DFX:
+ return GL_RGB;
+ case GL_COMPRESSED_RGBA_FXT1_3DFX:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_texture_compression_s3tc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ return GL_RGB;
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.S3_s3tc) {
+ switch (internalFormat) {
+ case GL_RGB_S3TC:
+ case GL_RGB4_S3TC:
+ return GL_RGB;
+ case GL_RGBA_S3TC:
+ case GL_RGBA4_S3TC:
+ return GL_RGBA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.MESA_ycbcr_texture) {
+ if (internalFormat == GL_YCBCR_MESA)
+ return GL_YCBCR_MESA;
+ }
+
+ if (ctx->Extensions.ARB_texture_float) {
+ switch (internalFormat) {
+ case GL_ALPHA16F_ARB:
+ case GL_ALPHA32F_ARB:
+ return GL_ALPHA;
+ case GL_RGBA16F_ARB:
+ case GL_RGBA32F_ARB:
+ return GL_RGBA;
+ case GL_RGB16F_ARB:
+ case GL_RGB32F_ARB:
+ return GL_RGB;
+ case GL_INTENSITY16F_ARB:
+ case GL_INTENSITY32F_ARB:
+ return GL_INTENSITY;
+ case GL_LUMINANCE16F_ARB:
+ case GL_LUMINANCE32F_ARB:
+ return GL_LUMINANCE;
+ case GL_LUMINANCE_ALPHA16F_ARB:
+ case GL_LUMINANCE_ALPHA32F_ARB:
+ return GL_LUMINANCE_ALPHA;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_packed_depth_stencil) {
+ switch (internalFormat) {
+ case GL_DEPTH_STENCIL_EXT:
+ case GL_DEPTH24_STENCIL8_EXT:
+ return GL_DEPTH_STENCIL_EXT;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+#if FEATURE_EXT_texture_sRGB
+ if (ctx->Extensions.EXT_texture_sRGB) {
+ switch (internalFormat) {
+ case GL_SRGB_EXT:
+ case GL_SRGB8_EXT:
+ case GL_COMPRESSED_SRGB_EXT:
+ case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
+ return GL_RGB;
+ case GL_SRGB_ALPHA_EXT:
+ case GL_SRGB8_ALPHA8_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
+ return GL_RGBA;
+ case GL_SLUMINANCE_ALPHA_EXT:
+ case GL_SLUMINANCE8_ALPHA8_EXT:
+ case GL_COMPRESSED_SLUMINANCE_EXT:
+ case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
+ return GL_LUMINANCE_ALPHA;
+ case GL_SLUMINANCE_EXT:
+ case GL_SLUMINANCE8_EXT:
+ return GL_LUMINANCE;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+#endif /* FEATURE_EXT_texture_sRGB */
+
+ return -1; /* error */
+}
+
+
+/**
+ * Test if the given image format is a color/RGBA format (i.e., not color
+ * index, depth, stencil, etc).
+ * \param format the image format value (may by an internal texture format)
+ * \return GL_TRUE if its a color/RGBA format, GL_FALSE otherwise.
+ */
+static GLboolean
+is_color_format(GLenum format)
+{
+ switch (format) {
+ case GL_RED:
+ case GL_GREEN:
+ case GL_BLUE:
+ case GL_ALPHA:
+ case GL_ALPHA4:
+ case GL_ALPHA8:
+ case GL_ALPHA12:
+ case GL_ALPHA16:
+ case 1:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE4:
+ case GL_LUMINANCE8:
+ case GL_LUMINANCE12:
+ case GL_LUMINANCE16:
+ case 2:
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE4_ALPHA4:
+ case GL_LUMINANCE6_ALPHA2:
+ case GL_LUMINANCE8_ALPHA8:
+ case GL_LUMINANCE12_ALPHA4:
+ case GL_LUMINANCE12_ALPHA12:
+ case GL_LUMINANCE16_ALPHA16:
+ case GL_INTENSITY:
+ case GL_INTENSITY4:
+ case GL_INTENSITY8:
+ case GL_INTENSITY12:
+ case GL_INTENSITY16:
+ case 3:
+ case GL_RGB:
+ case GL_BGR:
+ case GL_R3_G3_B2:
+ case GL_RGB4:
+ case GL_RGB5:
+ case GL_RGB8:
+ case GL_RGB10:
+ case GL_RGB12:
+ case GL_RGB16:
+ case 4:
+ case GL_ABGR_EXT:
+ case GL_RGBA:
+ case GL_BGRA:
+ case GL_RGBA2:
+ case GL_RGBA4:
+ case GL_RGB5_A1:
+ case GL_RGBA8:
+ case GL_RGB10_A2:
+ case GL_RGBA12:
+ case GL_RGBA16:
+ /* float texture formats */
+ case GL_ALPHA16F_ARB:
+ case GL_ALPHA32F_ARB:
+ case GL_LUMINANCE16F_ARB:
+ case GL_LUMINANCE32F_ARB:
+ case GL_LUMINANCE_ALPHA16F_ARB:
+ case GL_LUMINANCE_ALPHA32F_ARB:
+ case GL_INTENSITY16F_ARB:
+ case GL_INTENSITY32F_ARB:
+ case GL_RGB16F_ARB:
+ case GL_RGB32F_ARB:
+ case GL_RGBA16F_ARB:
+ case GL_RGBA32F_ARB:
+ /* compressed formats */
+ case GL_COMPRESSED_ALPHA:
+ case GL_COMPRESSED_LUMINANCE:
+ case GL_COMPRESSED_LUMINANCE_ALPHA:
+ case GL_COMPRESSED_INTENSITY:
+ case GL_COMPRESSED_RGB:
+ case GL_COMPRESSED_RGBA:
+ case GL_RGB_S3TC:
+ case GL_RGB4_S3TC:
+ case GL_RGBA_S3TC:
+ case GL_RGBA4_S3TC:
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ case GL_COMPRESSED_RGB_FXT1_3DFX:
+ case GL_COMPRESSED_RGBA_FXT1_3DFX:
+#if FEATURE_EXT_texture_sRGB
+ case GL_SRGB_EXT:
+ case GL_SRGB8_EXT:
+ case GL_SRGB_ALPHA_EXT:
+ case GL_SRGB8_ALPHA8_EXT:
+ case GL_SLUMINANCE_ALPHA_EXT:
+ case GL_SLUMINANCE8_ALPHA8_EXT:
+ case GL_SLUMINANCE_EXT:
+ case GL_SLUMINANCE8_EXT:
+ case GL_COMPRESSED_SRGB_EXT:
+ case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
+ case GL_COMPRESSED_SLUMINANCE_EXT:
+ case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
+#endif /* FEATURE_EXT_texture_sRGB */
+ return GL_TRUE;
+ case GL_YCBCR_MESA: /* not considered to be RGB */
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given image format is a color index format.
+ */
+static GLboolean
+is_index_format(GLenum format)
+{
+ switch (format) {
+ case GL_COLOR_INDEX:
+ case GL_COLOR_INDEX1_EXT:
+ case GL_COLOR_INDEX2_EXT:
+ case GL_COLOR_INDEX4_EXT:
+ case GL_COLOR_INDEX8_EXT:
+ case GL_COLOR_INDEX12_EXT:
+ case GL_COLOR_INDEX16_EXT:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given image format is a depth component format.
+ */
+static GLboolean
+is_depth_format(GLenum format)
+{
+ switch (format) {
+ case GL_DEPTH_COMPONENT16_ARB:
+ case GL_DEPTH_COMPONENT24_ARB:
+ case GL_DEPTH_COMPONENT32_ARB:
+ case GL_DEPTH_COMPONENT:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given image format is a YCbCr format.
+ */
+static GLboolean
+is_ycbcr_format(GLenum format)
+{
+ switch (format) {
+ case GL_YCBCR_MESA:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test if the given image format is a Depth/Stencil format.
+ */
+static GLboolean
+is_depthstencil_format(GLenum format)
+{
+ switch (format) {
+ case GL_DEPTH24_STENCIL8_EXT:
+ case GL_DEPTH_STENCIL_EXT:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+
+/**
+ * Test if it is a supported compressed format.
+ *
+ * \param internalFormat the internal format token provided by the user.
+ *
+ * \ret GL_TRUE if \p internalFormat is a supported compressed format, or
+ * GL_FALSE otherwise.
+ *
+ * Currently only GL_COMPRESSED_RGB_FXT1_3DFX and GL_COMPRESSED_RGBA_FXT1_3DFX
+ * are supported.
+ */
+static GLboolean
+is_compressed_format(GLcontext *ctx, GLenum internalFormat)
+{
+ GLint supported[100]; /* 100 should be plenty */
+ GLuint i, n;
+
+ n = _mesa_get_compressed_formats(ctx, supported, GL_TRUE);
+ ASSERT(n < 100);
+ for (i = 0; i < n; i++) {
+ if ((GLint) internalFormat == supported[i]) {
+ return GL_TRUE;
+ }
+ }
+ return GL_FALSE;
+}
+
+
+static GLuint
+texture_face(GLenum target)
+{
+ if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
+ target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)
+ return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
+ else
+ return 0;
+}
+
+
+
+/**
+ * Store a gl_texture_image pointer in a gl_texture_object structure
+ * according to the target and level parameters.
+ *
+ * \param tObj texture object.
+ * \param target texture target.
+ * \param level image level.
+ * \param texImage texture image.
+ *
+ * This was basically prompted by the introduction of cube maps.
+ */
+void
+_mesa_set_tex_image(struct gl_texture_object *tObj,
+ GLenum target, GLint level,
+ struct gl_texture_image *texImage)
+{
+ ASSERT(tObj);
+ ASSERT(texImage);
+ switch (target) {
+ case GL_TEXTURE_1D:
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_3D:
+ tObj->Image[0][level] = texImage;
+ break;
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
+ {
+ GLuint face = ((GLuint) target -
+ (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
+ tObj->Image[face][level] = texImage;
+ }
+ break;
+ case GL_TEXTURE_RECTANGLE_NV:
+ ASSERT(level == 0);
+ tObj->Image[0][level] = texImage;
+ break;
+ default:
+ _mesa_problem(NULL, "bad target in _mesa_set_tex_image()");
+ return;
+ }
+ /* Set the 'back' pointer */
+ texImage->TexObject = tObj;
+}
+
+
+/**
+ * Allocate a texture image structure.
+ *
+ * Called via ctx->Driver.NewTextureImage() unless overriden by a device
+ * driver.
+ *
+ * \return a pointer to gl_texture_image struct with all fields initialized to
+ * zero.
+ */
+struct gl_texture_image *
+_mesa_new_texture_image( GLcontext *ctx )
+{
+ (void) ctx;
+ return CALLOC_STRUCT(gl_texture_image);
+}
+
+
+/**
+ * Free texture image data.
+ * This function is a fallback called via ctx->Driver.FreeTexImageData().
+ *
+ * \param teximage texture image.
+ *
+ * Free the texture image data if it's not marked as client data.
+ */
+void
+_mesa_free_texture_image_data(GLcontext *ctx,
+ struct gl_texture_image *texImage)
+{
+ (void) ctx;
+
+ if (texImage->Data && !texImage->IsClientData) {
+ /* free the old texture data */
+ _mesa_free_texmemory(texImage->Data);
+ }
+
+ texImage->Data = NULL;
+}
+
+
+/**
+ * Free texture image.
+ *
+ * \param teximage texture image.
+ *
+ * Free the texture image structure and the associated image data.
+ */
+void
+_mesa_delete_texture_image( GLcontext *ctx, struct gl_texture_image *texImage )
+{
+ if (texImage->Data) {
+ ctx->Driver.FreeTexImageData( ctx, texImage );
+ }
+ ASSERT(texImage->Data == NULL);
+ if (texImage->ImageOffsets)
+ _mesa_free(texImage->ImageOffsets);
+ _mesa_free(texImage);
+}
+
+
+/**
+ * Test if a target is a proxy target.
+ *
+ * \param target texture target.
+ *
+ * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
+ */
+GLboolean
+_mesa_is_proxy_texture(GLenum target)
+{
+ return (target == GL_PROXY_TEXTURE_1D ||
+ target == GL_PROXY_TEXTURE_2D ||
+ target == GL_PROXY_TEXTURE_3D ||
+ target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
+ target == GL_PROXY_TEXTURE_RECTANGLE_NV);
+}
+
+
+/**
+ * Get the texture object that corresponds to the target of the given texture unit.
+ *
+ * \param ctx GL context.
+ * \param texUnit texture unit.
+ * \param target texture target.
+ *
+ * \return pointer to the texture object on success, or NULL on failure.
+ *
+ * \sa gl_texture_unit.
+ */
+struct gl_texture_object *
+_mesa_select_tex_object(GLcontext *ctx, const struct gl_texture_unit *texUnit,
+ GLenum target)
+{
+ switch (target) {
+ case GL_TEXTURE_1D:
+ return texUnit->Current1D;
+ case GL_PROXY_TEXTURE_1D:
+ return ctx->Texture.Proxy1D;
+ case GL_TEXTURE_2D:
+ return texUnit->Current2D;
+ case GL_PROXY_TEXTURE_2D:
+ return ctx->Texture.Proxy2D;
+ case GL_TEXTURE_3D:
+ return texUnit->Current3D;
+ case GL_PROXY_TEXTURE_3D:
+ return ctx->Texture.Proxy3D;
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
+ case GL_TEXTURE_CUBE_MAP_ARB:
+ return ctx->Extensions.ARB_texture_cube_map
+ ? texUnit->CurrentCubeMap : NULL;
+ case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
+ return ctx->Extensions.ARB_texture_cube_map
+ ? ctx->Texture.ProxyCubeMap : NULL;
+ case GL_TEXTURE_RECTANGLE_NV:
+ return ctx->Extensions.NV_texture_rectangle
+ ? texUnit->CurrentRect : NULL;
+ case GL_PROXY_TEXTURE_RECTANGLE_NV:
+ return ctx->Extensions.NV_texture_rectangle
+ ? ctx->Texture.ProxyRect : NULL;
+ default:
+ _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
+ return NULL;
+ }
+}
+
+
+/**
+ * Get the texture image struct which corresponds to target and level
+ * of the given texture unit.
+ *
+ * \param ctx GL context.
+ * \param texUnit texture unit.
+ * \param target texture target.
+ * \param level image level.
+ *
+ * \return pointer to the texture image structure on success, or NULL on failure.
+ *
+ * \sa gl_texture_unit.
+ */
+struct gl_texture_image *
+_mesa_select_tex_image(GLcontext *ctx, const struct gl_texture_unit *texUnit,
+ GLenum target, GLint level)
+{
+ ASSERT(texUnit);
+ ASSERT(level < MAX_TEXTURE_LEVELS);
+ switch (target) {
+ case GL_TEXTURE_1D:
+ return texUnit->Current1D->Image[0][level];
+ case GL_PROXY_TEXTURE_1D:
+ return ctx->Texture.Proxy1D->Image[0][level];
+ case GL_TEXTURE_2D:
+ return texUnit->Current2D->Image[0][level];
+ case GL_PROXY_TEXTURE_2D:
+ return ctx->Texture.Proxy2D->Image[0][level];
+ case GL_TEXTURE_3D:
+ return texUnit->Current3D->Image[0][level];
+ case GL_PROXY_TEXTURE_3D:
+ return ctx->Texture.Proxy3D->Image[0][level];
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
+ if (ctx->Extensions.ARB_texture_cube_map) {
+ GLuint face = ((GLuint) target -
+ (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
+ return texUnit->CurrentCubeMap->Image[face][level];
+ }
+ else
+ return NULL;
+ case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
+ if (ctx->Extensions.ARB_texture_cube_map)
+ return ctx->Texture.ProxyCubeMap->Image[0][level];
+ else
+ return NULL;
+ case GL_TEXTURE_RECTANGLE_NV:
+ if (ctx->Extensions.NV_texture_rectangle) {
+ ASSERT(level == 0);
+ return texUnit->CurrentRect->Image[0][level];
+ }
+ else {
+ return NULL;
+ }
+ case GL_PROXY_TEXTURE_RECTANGLE_NV:
+ if (ctx->Extensions.NV_texture_rectangle) {
+ ASSERT(level == 0);
+ return ctx->Texture.ProxyRect->Image[0][level];
+ }
+ else {
+ return NULL;
+ }
+ default:
+ _mesa_problem(ctx, "bad target in _mesa_select_tex_image()");
+ return NULL;
+ }
+}
+
+
+/**
+ * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
+ * it and install it. Only return NULL if passed a bad parameter or run
+ * out of memory.
+ */
+struct gl_texture_image *
+_mesa_get_tex_image(GLcontext *ctx, const struct gl_texture_unit *texUnit,
+ GLenum target, GLint level)
+{
+ struct gl_texture_image *texImage;
+ texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
+ if (!texImage) {
+ struct gl_texture_object *texObj;
+ texImage = ctx->Driver.NewTextureImage(ctx);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
+ return NULL;
+ }
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ ASSERT(texObj);
+ _mesa_set_tex_image(texObj, target, level, texImage);
+ }
+ return texImage;
+}
+
+
+/**
+ * Return pointer to the specified proxy texture image.
+ * Note that proxy textures are per-context, not per-texture unit.
+ * \return pointer to texture image or NULL if invalid target, invalid
+ * level, or out of memory.
+ */
+struct gl_texture_image *
+_mesa_get_proxy_tex_image(GLcontext *ctx, GLenum target, GLint level)
+{
+ struct gl_texture_image *texImage;
+
+ if (level < 0 )
+ return NULL;
+
+ switch (target) {
+ case GL_PROXY_TEXTURE_1D:
+ if (level >= ctx->Const.MaxTextureLevels)
+ return NULL;
+ texImage = ctx->Texture.Proxy1D->Image[0][level];
+ if (!texImage) {
+ texImage = ctx->Driver.NewTextureImage(ctx);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
+ return NULL;
+ }
+ ctx->Texture.Proxy1D->Image[0][level] = texImage;
+ /* Set the 'back' pointer */
+ texImage->TexObject = ctx->Texture.Proxy1D;
+ }
+ return texImage;
+ case GL_PROXY_TEXTURE_2D:
+ if (level >= ctx->Const.MaxTextureLevels)
+ return NULL;
+ texImage = ctx->Texture.Proxy2D->Image[0][level];
+ if (!texImage) {
+ texImage = ctx->Driver.NewTextureImage(ctx);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
+ return NULL;
+ }
+ ctx->Texture.Proxy2D->Image[0][level] = texImage;
+ /* Set the 'back' pointer */
+ texImage->TexObject = ctx->Texture.Proxy2D;
+ }
+ return texImage;
+ case GL_PROXY_TEXTURE_3D:
+ if (level >= ctx->Const.Max3DTextureLevels)
+ return NULL;
+ texImage = ctx->Texture.Proxy3D->Image[0][level];
+ if (!texImage) {
+ texImage = ctx->Driver.NewTextureImage(ctx);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
+ return NULL;
+ }
+ ctx->Texture.Proxy3D->Image[0][level] = texImage;
+ /* Set the 'back' pointer */
+ texImage->TexObject = ctx->Texture.Proxy3D;
+ }
+ return texImage;
+ case GL_PROXY_TEXTURE_CUBE_MAP:
+ if (level >= ctx->Const.MaxCubeTextureLevels)
+ return NULL;
+ texImage = ctx->Texture.ProxyCubeMap->Image[0][level];
+ if (!texImage) {
+ texImage = ctx->Driver.NewTextureImage(ctx);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
+ return NULL;
+ }
+ ctx->Texture.ProxyCubeMap->Image[0][level] = texImage;
+ /* Set the 'back' pointer */
+ texImage->TexObject = ctx->Texture.ProxyCubeMap;
+ }
+ return texImage;
+ case GL_PROXY_TEXTURE_RECTANGLE_NV:
+ if (level > 0)
+ return NULL;
+ texImage = ctx->Texture.ProxyRect->Image[0][level];
+ if (!texImage) {
+ texImage = ctx->Driver.NewTextureImage(ctx);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
+ return NULL;
+ }
+ ctx->Texture.ProxyRect->Image[0][level] = texImage;
+ /* Set the 'back' pointer */
+ texImage->TexObject = ctx->Texture.ProxyRect;
+ }
+ return texImage;
+ default:
+ return NULL;
+ }
+}
+
+
+/**
+ * Get the maximum number of allowed mipmap levels.
+ *
+ * \param ctx GL context.
+ * \param target texture target.
+ *
+ * \return the maximum number of allowed mipmap levels for the given
+ * texture target, or zero if passed a bad target.
+ *
+ * \sa gl_constants.
+ */
+GLint
+_mesa_max_texture_levels(GLcontext *ctx, GLenum target)
+{
+ switch (target) {
+ case GL_TEXTURE_1D:
+ case GL_PROXY_TEXTURE_1D:
+ case GL_TEXTURE_2D:
+ case GL_PROXY_TEXTURE_2D:
+ return ctx->Const.MaxTextureLevels;
+ case GL_TEXTURE_3D:
+ case GL_PROXY_TEXTURE_3D:
+ return ctx->Const.Max3DTextureLevels;
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
+ case GL_TEXTURE_CUBE_MAP_ARB:
+ case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
+ return ctx->Const.MaxCubeTextureLevels;
+ case GL_TEXTURE_RECTANGLE_NV:
+ case GL_PROXY_TEXTURE_RECTANGLE_NV:
+ return 1;
+ default:
+ return 0; /* bad target */
+ }
+}
+
+
+
+#if 000 /* not used anymore */
+/*
+ * glTexImage[123]D can accept a NULL image pointer. In this case we
+ * create a texture image with unspecified image contents per the OpenGL
+ * spec.
+ */
+static GLubyte *
+make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
+{
+ const GLint components = _mesa_components_in_format(format);
+ const GLint numPixels = width * height * depth;
+ GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte));
+
+#ifdef DEBUG
+ /*
+ * Let's see if anyone finds this. If glTexImage2D() is called with
+ * a NULL image pointer then load the texture image with something
+ * interesting instead of leaving it indeterminate.
+ */
+ if (data) {
+ static const char message[8][32] = {
+ " X X XXXXX XXX X ",
+ " XX XX X X X X X ",
+ " X X X X X X X ",
+ " X X XXXX XXX XXXXX ",
+ " X X X X X X ",
+ " X X X X X X X ",
+ " X X XXXXX XXX X X ",
+ " "
+ };
+
+ GLubyte *imgPtr = data;
+ GLint h, i, j, k;
+ for (h = 0; h < depth; h++) {
+ for (i = 0; i < height; i++) {
+ GLint srcRow = 7 - (i % 8);
+ for (j = 0; j < width; j++) {
+ GLint srcCol = j % 32;
+ GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
+ for (k = 0; k < components; k++) {
+ *imgPtr++ = texel;
+ }
+ }
+ }
+ }
+ }
+#endif
+
+ return data;
+}
+#endif
+
+
+
+/**
+ * Reset the fields of a gl_texture_image struct to zero.
+ *
+ * \param img texture image structure.
+ *
+ * This is called when a proxy texture test fails, we set all the
+ * image members (except DriverData) to zero.
+ * It's also used in glTexImage[123]D as a safeguard to be sure all
+ * required fields get initialized properly by the Driver.TexImage[123]D
+ * functions.
+ */
+static void
+clear_teximage_fields(struct gl_texture_image *img)
+{
+ ASSERT(img);
+ img->_BaseFormat = 0;
+ img->InternalFormat = 0;
+ img->Border = 0;
+ img->Width = 0;
+ img->Height = 0;
+ img->Depth = 0;
+ img->RowStride = 0;
+ if (img->ImageOffsets) {
+ _mesa_free(img->ImageOffsets);
+ img->ImageOffsets = NULL;
+ }
+ img->Width2 = 0;
+ img->Height2 = 0;
+ img->Depth2 = 0;
+ img->WidthLog2 = 0;
+ img->HeightLog2 = 0;
+ img->DepthLog2 = 0;
+ img->Data = NULL;
+ img->TexFormat = &_mesa_null_texformat;
+ img->FetchTexelc = NULL;
+ img->FetchTexelf = NULL;
+ img->IsCompressed = 0;
+ img->CompressedSize = 0;
+}
+
+
+/**
+ * Initialize basic fields of the gl_texture_image struct.
+ *
+ * \param ctx GL context.
+ * \param target texture target (GL_TEXTURE_1D, GL_TEXTURE_RECTANGLE, etc).
+ * \param img texture image structure to be initialized.
+ * \param width image width.
+ * \param height image height.
+ * \param depth image depth.
+ * \param border image border.
+ * \param internalFormat internal format.
+ *
+ * Fills in the fields of \p img with the given information.
+ * Note: width, height and depth include the border.
+ */
+void
+_mesa_init_teximage_fields(GLcontext *ctx, GLenum target,
+ struct gl_texture_image *img,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLint border, GLenum internalFormat)
+{
+ GLint i;
+
+ ASSERT(img);
+ ASSERT(width >= 0);
+ ASSERT(height >= 0);
+ ASSERT(depth >= 0);
+
+ img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat );
+ ASSERT(img->_BaseFormat > 0);
+ img->InternalFormat = internalFormat;
+ img->Border = border;
+ img->Width = width;
+ img->Height = height;
+ img->Depth = depth;
+ img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
+ img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
+ img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
+ img->WidthLog2 = logbase2(img->Width2);
+ if (height == 1) /* 1-D texture */
+ img->HeightLog2 = 0;
+ else
+ img->HeightLog2 = logbase2(img->Height2);
+ if (depth == 1) /* 2-D texture */
+ img->DepthLog2 = 0;
+ else
+ img->DepthLog2 = logbase2(img->Depth2);
+ img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
+ img->IsCompressed = GL_FALSE;
+ img->CompressedSize = 0;
+
+ if ((width == 1 || _mesa_bitcount(img->Width2) == 1) &&
+ (height == 1 || _mesa_bitcount(img->Height2) == 1) &&
+ (depth == 1 || _mesa_bitcount(img->Depth2) == 1))
+ img->_IsPowerOfTwo = GL_TRUE;
+ else
+ img->_IsPowerOfTwo = GL_FALSE;
+
+ /* RowStride and ImageOffsets[] describe how to address texels in 'Data' */
+ img->RowStride = width;
+ /* Allocate the ImageOffsets array and initialize to typical values.
+ * We allocate the array for 1D/2D textures too in order to avoid special-
+ * case code in the texstore routines.
+ */
+ img->ImageOffsets = (GLuint *) _mesa_malloc(depth * sizeof(GLuint));
+ for (i = 0; i < depth; i++) {
+ img->ImageOffsets[i] = i * width * height;
+ }
+
+ /* Compute Width/Height/DepthScale for mipmap lod computation */
+ if (target == GL_TEXTURE_RECTANGLE_NV) {
+ /* scale = 1.0 since texture coords directly map to texels */
+ img->WidthScale = 1.0;
+ img->HeightScale = 1.0;
+ img->DepthScale = 1.0;
+ }
+ else {
+ img->WidthScale = (GLfloat) img->Width;
+ img->HeightScale = (GLfloat) img->Height;
+ img->DepthScale = (GLfloat) img->Depth;
+ }
+}
+
+
+/**
+ * This is the fallback for Driver.TestProxyTexImage(). Test the texture
+ * level, width, height and depth against the ctx->Const limits for textures.
+ *
+ * A hardware driver might override this function if, for example, the
+ * max 3D texture size is 512x512x64 (i.e. not a cube).
+ *
+ * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
+ * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
+ * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
+ * \param level as passed to glTexImage
+ * \param internalFormat as passed to glTexImage
+ * \param format as passed to glTexImage
+ * \param type as passed to glTexImage
+ * \param width as passed to glTexImage
+ * \param height as passed to glTexImage
+ * \param depth as passed to glTexImage
+ * \param border as passed to glTexImage
+ * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
+ */
+GLboolean
+_mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
+ GLint internalFormat, GLenum format, GLenum type,
+ GLint width, GLint height, GLint depth, GLint border)
+{
+ GLint maxSize;
+
+ (void) internalFormat;
+ (void) format;
+ (void) type;
+
+ switch (target) {
+ case GL_PROXY_TEXTURE_1D:
+ maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
+ if (width < 2 * border || width > 2 + maxSize ||
+ (!ctx->Extensions.ARB_texture_non_power_of_two &&
+ _mesa_bitcount(width - 2 * border) != 1) ||
+ level >= ctx->Const.MaxTextureLevels) {
+ /* bad width or level */
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+ case GL_PROXY_TEXTURE_2D:
+ maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
+ if (width < 2 * border || width > 2 + maxSize ||
+ (!ctx->Extensions.ARB_texture_non_power_of_two &&
+ _mesa_bitcount(width - 2 * border) != 1) ||
+ height < 2 * border || height > 2 + maxSize ||
+ (!ctx->Extensions.ARB_texture_non_power_of_two &&
+ _mesa_bitcount(height - 2 * border) != 1) ||
+ level >= ctx->Const.MaxTextureLevels) {
+ /* bad width or height or level */
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+ case GL_PROXY_TEXTURE_3D:
+ maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
+ if (width < 2 * border || width > 2 + maxSize ||
+ (!ctx->Extensions.ARB_texture_non_power_of_two &&
+ _mesa_bitcount(width - 2 * border) != 1) ||
+ height < 2 * border || height > 2 + maxSize ||
+ (!ctx->Extensions.ARB_texture_non_power_of_two &&
+ _mesa_bitcount(height - 2 * border) != 1) ||
+ depth < 2 * border || depth > 2 + maxSize ||
+ (!ctx->Extensions.ARB_texture_non_power_of_two &&
+ _mesa_bitcount(depth - 2 * border) != 1) ||
+ level >= ctx->Const.Max3DTextureLevels) {
+ /* bad width or height or depth or level */
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+ case GL_PROXY_TEXTURE_RECTANGLE_NV:
+ if (width < 1 || width > ctx->Const.MaxTextureRectSize ||
+ height < 1 || height > ctx->Const.MaxTextureRectSize ||
+ level != 0) {
+ /* bad width or height or level */
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+ case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
+ maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
+ if (width < 2 * border || width > 2 + maxSize ||
+ (!ctx->Extensions.ARB_texture_non_power_of_two &&
+ _mesa_bitcount(width - 2 * border) != 1) ||
+ height < 2 * border || height > 2 + maxSize ||
+ (!ctx->Extensions.ARB_texture_non_power_of_two &&
+ _mesa_bitcount(height - 2 * border) != 1) ||
+ level >= ctx->Const.MaxCubeTextureLevels) {
+ /* bad width or height */
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+ default:
+ _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage");
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * Test the glTexImage[123]D() parameters for errors.
+ *
+ * \param ctx GL context.
+ * \param target texture target given by the user.
+ * \param level image level given by the user.
+ * \param internalFormat internal format given by the user.
+ * \param format pixel data format given by the user.
+ * \param type pixel data type given by the user.
+ * \param dimensions texture image dimensions (must be 1, 2 or 3).
+ * \param width image width given by the user.
+ * \param height image height given by the user.
+ * \param depth image depth given by the user.
+ * \param border image border given by the user.
+ *
+ * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
+ *
+ * Verifies each of the parameters against the constants specified in
+ * __GLcontextRec::Const and the supported extensions, and according to the
+ * OpenGL specification.
+ */
+static GLboolean
+texture_error_check( GLcontext *ctx, GLenum target,
+ GLint level, GLint internalFormat,
+ GLenum format, GLenum type,
+ GLuint dimensions,
+ GLint width, GLint height,
+ GLint depth, GLint border )
+{
+ const GLboolean isProxy = _mesa_is_proxy_texture(target);
+ GLboolean sizeOK;
+ GLboolean colorFormat, indexFormat;
+
+ /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
+ if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexImage%dD(level=%d)", dimensions, level);
+ }
+ return GL_TRUE;
+ }
+
+ /* Check border */
+ if (border < 0 || border > 1 ||
+ ((target == GL_TEXTURE_RECTANGLE_NV ||
+ target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexImage%dD(border=%d)", dimensions, border);
+ }
+ return GL_TRUE;
+ }
+
+ if (width < 0 || height < 0 || depth < 0) {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexImage%dD(width, height or depth < 0)", dimensions);
+ }
+ return GL_TRUE;
+ }
+
+ /* Check target and call ctx->Driver.TestProxyTexImage() to check the
+ * level, width, height and depth.
+ */
+ if (dimensions == 1) {
+ if (target == GL_PROXY_TEXTURE_1D || target == GL_TEXTURE_1D) {
+ sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_1D,
+ level, internalFormat,
+ format, type,
+ width, 1, 1, border);
+ }
+ else {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
+ return GL_TRUE;
+ }
+ }
+ else if (dimensions == 2) {
+ if (target == GL_PROXY_TEXTURE_2D || target == GL_TEXTURE_2D) {
+ sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_2D,
+ level, internalFormat,
+ format, type,
+ width, height, 1, border);
+ }
+ else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
+ (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
+ target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
+ if (!ctx->Extensions.ARB_texture_cube_map) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
+ return GL_TRUE;
+ }
+ sizeOK = (width == height) &&
+ ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_CUBE_MAP_ARB,
+ level, internalFormat, format, type,
+ width, height, 1, border);
+ }
+ else if (target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
+ target == GL_TEXTURE_RECTANGLE_NV) {
+ if (!ctx->Extensions.NV_texture_rectangle) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
+ return GL_TRUE;
+ }
+ sizeOK = ctx->Driver.TestProxyTexImage(ctx,
+ GL_PROXY_TEXTURE_RECTANGLE_NV,
+ level, internalFormat,
+ format, type,
+ width, height, 1, border);
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
+ return GL_TRUE;
+ }
+ }
+ else if (dimensions == 3) {
+ if (target == GL_PROXY_TEXTURE_3D || target == GL_TEXTURE_3D) {
+ sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_3D,
+ level, internalFormat,
+ format, type,
+ width, height, depth, border);
+ }
+ else {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
+ return GL_TRUE;
+ }
+ }
+ else {
+ _mesa_problem( ctx, "bad dims in texture_error_check" );
+ return GL_TRUE;
+ }
+
+ if (!sizeOK) {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
+ dimensions, level, width, height, depth);
+ }
+ return GL_TRUE;
+ }
+
+ /* Check internalFormat */
+ if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexImage%dD(internalFormat=0x%x)",
+ dimensions, internalFormat);
+ }
+ return GL_TRUE;
+ }
+
+ /* Check incoming image format and type */
+ if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
+ /* Yes, generate GL_INVALID_OPERATION, not GL_INVALID_ENUM, if there
+ * is a type/format mismatch. See 1.2 spec page 94, sec 3.6.4.
+ */
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexImage%dD(format or type)", dimensions);
+ }
+ return GL_TRUE;
+ }
+
+ /* make sure internal format and format basically agree */
+ colorFormat = is_color_format(format);
+ indexFormat = is_index_format(format);
+ if ((is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
+ (is_index_format(internalFormat) && !indexFormat) ||
+ (is_depth_format(internalFormat) != is_depth_format(format)) ||
+ (is_ycbcr_format(internalFormat) != is_ycbcr_format(format)) ||
+ (is_depthstencil_format(internalFormat) != is_depthstencil_format(format))) {
+ if (!isProxy)
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexImage(internalFormat/format)");
+ return GL_TRUE;
+ }
+
+ /* additional checks for ycbcr textures */
+ if (internalFormat == GL_YCBCR_MESA) {
+ ASSERT(ctx->Extensions.MESA_ycbcr_texture);
+ if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
+ type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
+ char message[100];
+ _mesa_sprintf(message,
+ "glTexImage%d(format/type YCBCR mismatch", dimensions);
+ _mesa_error(ctx, GL_INVALID_ENUM, message);
+ return GL_TRUE; /* error */
+ }
+ if (target != GL_TEXTURE_2D &&
+ target != GL_PROXY_TEXTURE_2D &&
+ target != GL_TEXTURE_RECTANGLE_NV &&
+ target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
+ if (!isProxy)
+ _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)");
+ return GL_TRUE;
+ }
+ if (border != 0) {
+ if (!isProxy) {
+ char message[100];
+ _mesa_sprintf(message,
+ "glTexImage%d(format=GL_YCBCR_MESA and border=%d)",
+ dimensions, border);
+ _mesa_error(ctx, GL_INVALID_VALUE, message);
+ }
+ return GL_TRUE;
+ }
+ }
+
+ /* additional checks for depth textures */
+ if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) {
+ /* Only 1D, 2D and rectangular textures supported, not 3D or cubes */
+ if (target != GL_TEXTURE_1D &&
+ target != GL_PROXY_TEXTURE_1D &&
+ target != GL_TEXTURE_2D &&
+ target != GL_PROXY_TEXTURE_2D &&
+ target != GL_TEXTURE_RECTANGLE_ARB &&
+ target != GL_PROXY_TEXTURE_RECTANGLE_ARB) {
+ if (!isProxy)
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glTexImage(target/internalFormat)");
+ return GL_TRUE;
+ }
+ }
+
+ /* additional checks for compressed textures */
+ if (is_compressed_format(ctx, internalFormat)) {
+ if (target == GL_TEXTURE_2D || target == GL_PROXY_TEXTURE_2D) {
+ /* OK */
+ }
+ else if (ctx->Extensions.ARB_texture_cube_map &&
+ (target == GL_PROXY_TEXTURE_CUBE_MAP ||
+ (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
+ target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))) {
+ /* OK */
+ }
+ else {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glTexImage%d(target)", dimensions);
+ return GL_TRUE;
+ }
+ }
+ if (border != 0) {
+ if (!isProxy) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexImage%D(border!=0)", dimensions);
+ }
+ return GL_TRUE;
+ }
+ }
+
+ /* if we get here, the parameters are OK */
+ return GL_FALSE;
+}
+
+
+/**
+ * Test glTexSubImage[123]D() parameters for errors.
+ *
+ * \param ctx GL context.
+ * \param dimensions texture image dimensions (must be 1, 2 or 3).
+ * \param target texture target given by the user.
+ * \param level image level given by the user.
+ * \param xoffset sub-image x offset given by the user.
+ * \param yoffset sub-image y offset given by the user.
+ * \param zoffset sub-image z offset given by the user.
+ * \param format pixel data format given by the user.
+ * \param type pixel data type given by the user.
+ * \param width image width given by the user.
+ * \param height image height given by the user.
+ * \param depth image depth given by the user.
+ *
+ * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
+ *
+ * Verifies each of the parameters against the constants specified in
+ * __GLcontextRec::Const and the supported extensions, and according to the
+ * OpenGL specification.
+ */
+static GLboolean
+subtexture_error_check( GLcontext *ctx, GLuint dimensions,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint width, GLint height, GLint depth,
+ GLenum format, GLenum type )
+{
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ struct gl_texture_image *destTex;
+
+ /* Check target */
+ if (dimensions == 1) {
+ if (target != GL_TEXTURE_1D) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(target)" );
+ return GL_TRUE;
+ }
+ }
+ else if (dimensions == 2) {
+ if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
+ target <=GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
+ if (!ctx->Extensions.ARB_texture_cube_map) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
+ return GL_TRUE;
+ }
+ }
+ else if (ctx->Extensions.NV_texture_rectangle &&
+ target == GL_TEXTURE_RECTANGLE_NV) {
+ if (!ctx->Extensions.NV_texture_rectangle) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
+ return GL_TRUE;
+ }
+ }
+ else if (target != GL_TEXTURE_2D) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
+ return GL_TRUE;
+ }
+ }
+ else if (dimensions == 3) {
+ if (target != GL_TEXTURE_3D) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
+ return GL_TRUE;
+ }
+ }
+ else {
+ _mesa_problem( ctx, "invalid dims in texture_error_check" );
+ return GL_TRUE;
+ }
+
+ /* Basic level check */
+ if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level);
+ return GL_TRUE;
+ }
+
+ if (width < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexSubImage%dD(width=%d)", dimensions, width);
+ return GL_TRUE;
+ }
+ if (height < 0 && dimensions > 1) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexSubImage%dD(height=%d)", dimensions, height);
+ return GL_TRUE;
+ }
+ if (depth < 0 && dimensions > 2) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glTexSubImage%dD(depth=%d)", dimensions, depth);
+ return GL_TRUE;
+ }
+
+ destTex = _mesa_select_tex_image(ctx, texUnit, target, level);
+
+ if (!destTex) {
+ /* undefined image level */
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions);
+ return GL_TRUE;
+ }
+
+ if (xoffset < -((GLint)destTex->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)",
+ dimensions);
+ return GL_TRUE;
+ }
+ if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)",
+ dimensions);
+ return GL_TRUE;
+ }
+ if (dimensions > 1) {
+ if (yoffset < -((GLint)destTex->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)",
+ dimensions);
+ return GL_TRUE;
+ }
+ if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)",
+ dimensions);
+ return GL_TRUE;
+ }
+ }
+ if (dimensions > 2) {
+ if (zoffset < -((GLint)destTex->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
+ return GL_TRUE;
+ }
+ if (zoffset + depth > (GLint) (destTex->Depth + destTex->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
+ return GL_TRUE;
+ }
+ }
+
+ if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glTexSubImage%dD(format or type)", dimensions);
+ return GL_TRUE;
+ }
+
+#if FEATURE_EXT_texture_sRGB
+ if (destTex->InternalFormat == GL_COMPRESSED_SRGB_S3TC_DXT1_EXT ||
+ destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT ||
+ destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT ||
+ destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT) {
+ if ((width & 0x3) || (height & 0x3) ||
+ (xoffset & 0x3) || (yoffset & 0x3))
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexSubImage%dD(size or offset not multiple of 4)",
+ dimensions);
+ return GL_TRUE;
+ }
+#endif
+
+ if (destTex->IsCompressed) {
+ const struct gl_texture_unit *texUnit;
+ const struct gl_texture_image *texImage;
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
+
+ if (target == GL_TEXTURE_2D || target == GL_PROXY_TEXTURE_2D) {
+ /* OK */
+ }
+ else if (ctx->Extensions.ARB_texture_cube_map &&
+ (target == GL_PROXY_TEXTURE_CUBE_MAP ||
+ (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
+ target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))) {
+ /* OK */
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glTexSubImage%D(target)", dimensions);
+ return GL_TRUE;
+ }
+ /* offset must be multiple of 4 */
+ if ((xoffset & 3) || (yoffset & 3)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexSubImage%D(xoffset or yoffset)", dimensions);
+ return GL_TRUE;
+ }
+ /* size must be multiple of 4 or equal to whole texture size */
+ if ((width & 3) && (GLuint) width != texImage->Width) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexSubImage%D(width)", dimensions);
+ return GL_TRUE;
+ }
+ if ((height & 3) && (GLuint) height != texImage->Height) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glTexSubImage%D(width)", dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ return GL_FALSE;
+}
+
+
+/**
+ * Test glCopyTexImage[12]D() parameters for errors.
+ *
+ * \param ctx GL context.
+ * \param dimensions texture image dimensions (must be 1, 2 or 3).
+ * \param target texture target given by the user.
+ * \param level image level given by the user.
+ * \param internalFormat internal format given by the user.
+ * \param width image width given by the user.
+ * \param height image height given by the user.
+ * \param depth image depth given by the user.
+ * \param border texture border.
+ *
+ * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
+ *
+ * Verifies each of the parameters against the constants specified in
+ * __GLcontextRec::Const and the supported extensions, and according to the
+ * OpenGL specification.
+ */
+static GLboolean
+copytexture_error_check( GLcontext *ctx, GLuint dimensions,
+ GLenum target, GLint level, GLint internalFormat,
+ GLint width, GLint height, GLint border )
+{
+ GLenum type;
+ GLboolean sizeOK;
+ GLint format;
+
+ /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
+ if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
+ /* Check that the source buffer is complete */
+ if (ctx->ReadBuffer->Name) {
+ _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
+ if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+ "glCopyTexImage%dD(invalid readbuffer)", dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexImage%dD(level=%d)", dimensions, level);
+ return GL_TRUE;
+ }
+
+ /* Check border */
+ if (border < 0 || border > 1 ||
+ ((target == GL_TEXTURE_RECTANGLE_NV ||
+ target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
+ return GL_TRUE;
+ }
+
+ format = _mesa_base_tex_format(ctx, internalFormat);
+ if (format < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexImage%dD(internalFormat)", dimensions);
+ return GL_TRUE;
+ }
+
+ /* NOTE: the format and type aren't really significant for
+ * TestProxyTexImage(). Only the internalformat really matters.
+ if (!_mesa_source_buffer_exists(ctx, format)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexImage%dD(missing readbuffer)", dimensions);
+ return GL_TRUE;
+ }
+
+ */
+ type = GL_FLOAT;
+
+ /* Check target and call ctx->Driver.TestProxyTexImage() to check the
+ * level, width, height and depth.
+ */
+ if (dimensions == 1) {
+ if (target == GL_TEXTURE_1D) {
+ sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_1D,
+ level, internalFormat,
+ format, type,
+ width, 1, 1, border);
+ }
+ else {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage1D(target)" );
+ return GL_TRUE;
+ }
+ }
+ else if (dimensions == 2) {
+ if (target == GL_TEXTURE_2D) {
+ sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_2D,
+ level, internalFormat,
+ format, type,
+ width, height, 1, border);
+ }
+ else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
+ target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
+ if (!ctx->Extensions.ARB_texture_cube_map) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
+ return GL_TRUE;
+ }
+ sizeOK = (width == height) &&
+ ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_CUBE_MAP_ARB,
+ level, internalFormat, format, type,
+ width, height, 1, border);
+ }
+ else if (target == GL_TEXTURE_RECTANGLE_NV) {
+ if (!ctx->Extensions.NV_texture_rectangle) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
+ return GL_TRUE;
+ }
+ sizeOK = ctx->Driver.TestProxyTexImage(ctx,
+ GL_PROXY_TEXTURE_RECTANGLE_NV,
+ level, internalFormat,
+ format, type,
+ width, height, 1, border);
+ }
+ else {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
+ return GL_TRUE;
+ }
+ }
+ else {
+ _mesa_problem(ctx, "invalid dimensions in copytexture_error_check");
+ return GL_TRUE;
+ }
+
+ if (!sizeOK) {
+ if (dimensions == 1) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexImage1D(width=%d)", width);
+ }
+ else {
+ ASSERT(dimensions == 2);
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexImage2D(width=%d, height=%d)", width, height);
+ }
+ return GL_TRUE;
+ }
+
+ if (is_compressed_format(ctx, internalFormat)) {
+ if (target != GL_TEXTURE_2D) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glCopyTexImage%d(target)", dimensions);
+ return GL_TRUE;
+ }
+ if (border != 0) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexImage%D(border!=0)", dimensions);
+ return GL_TRUE;
+ }
+ }
+ else if (is_depth_format(internalFormat)) {
+ /* make sure we have depth/stencil buffers */
+ if (!ctx->ReadBuffer->_DepthBuffer) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexImage%D(no depth)", dimensions);
+ return GL_TRUE;
+ }
+ }
+ else if (is_depthstencil_format(internalFormat)) {
+ /* make sure we have depth/stencil buffers */
+ if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexImage%D(no depth/stencil buffer)", dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ /* if we get here, the parameters are OK */
+ return GL_FALSE;
+}
+
+
+/**
+ * Test glCopyTexSubImage[12]D() parameters for errors.
+ *
+ * \param ctx GL context.
+ * \param dimensions texture image dimensions (must be 1, 2 or 3).
+ * \param target texture target given by the user.
+ * \param level image level given by the user.
+ * \param xoffset sub-image x offset given by the user.
+ * \param yoffset sub-image y offset given by the user.
+ * \param zoffset sub-image z offset given by the user.
+ * \param width image width given by the user.
+ * \param height image height given by the user.
+ *
+ * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
+ *
+ * Verifies each of the parameters against the constants specified in
+ * __GLcontextRec::Const and the supported extensions, and according to the
+ * OpenGL specification.
+ */
+static GLboolean
+copytexsubimage_error_check( GLcontext *ctx, GLuint dimensions,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height )
+{
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ struct gl_texture_image *teximage;
+
+ /* Check target */
+ /* Check that the source buffer is complete */
+ if (ctx->ReadBuffer->Name) {
+ _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
+ if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+ "glCopyTexImage%dD(invalid readbuffer)", dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ if (dimensions == 1) {
+ if (target != GL_TEXTURE_1D) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage1D(target)" );
+ return GL_TRUE;
+ }
+ }
+ else if (dimensions == 2) {
+ if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
+ target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
+ if (!ctx->Extensions.ARB_texture_cube_map) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
+ return GL_TRUE;
+ }
+ }
+ else if (target == GL_TEXTURE_RECTANGLE_NV) {
+ if (!ctx->Extensions.NV_texture_rectangle) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
+ return GL_TRUE;
+ }
+ }
+ else if (target != GL_TEXTURE_2D) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
+ return GL_TRUE;
+ }
+ }
+ else if (dimensions == 3) {
+ if (target != GL_TEXTURE_3D) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage3D(target)" );
+ return GL_TRUE;
+ }
+ }
+
+ /* Check level */
+ if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(level=%d)", dimensions, level);
+ return GL_TRUE;
+ }
+
+ /* Check size */
+ if (width < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(width=%d)", dimensions, width);
+ return GL_TRUE;
+ }
+ if (dimensions > 1 && height < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(height=%d)", dimensions, height);
+ return GL_TRUE;
+ }
+
+ teximage = _mesa_select_tex_image(ctx, texUnit, target, level);
+ if (!teximage) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexSubImage%dD(undefined texture level: %d)",
+ dimensions, level);
+ return GL_TRUE;
+ }
+
+ if (xoffset < -((GLint)teximage->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset);
+ return GL_TRUE;
+ }
+ if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(xoffset+width)", dimensions);
+ return GL_TRUE;
+ }
+ if (dimensions > 1) {
+ if (yoffset < -((GLint)teximage->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset);
+ return GL_TRUE;
+ }
+ /* NOTE: we're adding the border here, not subtracting! */
+ if (yoffset + height > (GLint) (teximage->Height + teximage->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(yoffset+height)", dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ if (dimensions > 2) {
+ if (zoffset < -((GLint)teximage->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(zoffset)", dimensions);
+ return GL_TRUE;
+ }
+ if (zoffset > (GLint) (teximage->Depth + teximage->Border)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ if (teximage->IsCompressed) {
+ if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexSubImage%dD(missing readbuffer)", dimensions);
+ return GL_TRUE;
+ }
+
+ if (target != GL_TEXTURE_2D) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glCopyTexSubImage%d(target)", dimensions);
+ return GL_TRUE;
+ }
+ /* offset must be multiple of 4 */
+ if ((xoffset & 3) || (yoffset & 3)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%D(xoffset or yoffset)", dimensions);
+ return GL_TRUE;
+ }
+ /* size must be multiple of 4 */
+ if ((width & 3) != 0 && (GLuint) width != teximage->Width) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%D(width)", dimensions);
+ return GL_TRUE;
+ }
+ if ((height & 3) != 0 && (GLuint) height != teximage->Height) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCopyTexSubImage%D(height)", dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ if (teximage->InternalFormat == GL_YCBCR_MESA) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
+ return GL_TRUE;
+ }
+
+ if (teximage->_BaseFormat == GL_DEPTH_COMPONENT) {
+ if (!ctx->ReadBuffer->_DepthBuffer) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexSubImage%D(no depth buffer)",
+ dimensions);
+ return GL_TRUE;
+ }
+ }
+ else if (teximage->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
+ if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyTexSubImage%D(no depth/stencil buffer)",
+ dimensions);
+ return GL_TRUE;
+ }
+ }
+
+ /* if we get here, the parameters are OK */
+ return GL_FALSE;
+}
+
+
+/**
+ * Get texture image. Called by glGetTexImage.
+ *
+ * \param target texture target.
+ * \param level image level.
+ * \param format pixel data format for returned image.
+ * \param type pixel data type for returned image.
+ * \param pixels returned pixel data.
+ */
+void GLAPIENTRY
+_mesa_GetTexImage( GLenum target, GLint level, GLenum format,
+ GLenum type, GLvoid *pixels )
+{
+ const struct gl_texture_unit *texUnit;
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GLint maxLevels = 0;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ texUnit = &(ctx->Texture.Unit[ctx->Texture.CurrentUnit]);
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ if (!texObj || _mesa_is_proxy_texture(target)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target)");
+ return;
+ }
+
+ maxLevels = _mesa_max_texture_levels(ctx, target);
+ ASSERT(maxLevels > 0); /* 0 indicates bad target, caught above */
+
+ if (level < 0 || level >= maxLevels) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexImage(level)" );
+ return;
+ }
+
+ if (_mesa_sizeof_packed_type(type) <= 0) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(type)" );
+ return;
+ }
+
+ if (_mesa_components_in_format(format) <= 0 ||
+ format == GL_STENCIL_INDEX) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(format)" );
+ return;
+ }
+
+ if (!ctx->Extensions.EXT_paletted_texture && is_index_format(format)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
+ return;
+ }
+
+ if (!ctx->Extensions.SGIX_depth_texture &&
+ !ctx->Extensions.ARB_depth_texture && is_depth_format(format)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
+ return;
+ }
+
+ if (!ctx->Extensions.MESA_ycbcr_texture && is_ycbcr_format(format)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
+ return;
+ }
+
+ if (!ctx->Extensions.EXT_packed_depth_stencil
+ && is_depthstencil_format(format)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
+ return;
+ }
+
+ if (!pixels)
+ return;
+
+ texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
+ if (!texImage) {
+ /* invalid mipmap level, not an error */
+ return;
+ }
+
+ /* Make sure the requested image format is compatible with the
+ * texture's format. Note that a color index texture can be converted
+ * to RGBA so that combo is allowed.
+ */
+ if (is_color_format(format)
+ && !is_color_format(texImage->TexFormat->BaseFormat)
+ && !is_index_format(texImage->TexFormat->BaseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return;
+ }
+ else if (is_index_format(format)
+ && !is_index_format(texImage->TexFormat->BaseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return;
+ }
+ else if (is_depth_format(format)
+ && !is_depth_format(texImage->TexFormat->BaseFormat)
+ && !is_depthstencil_format(texImage->TexFormat->BaseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return;
+ }
+ else if (is_ycbcr_format(format)
+ && !is_ycbcr_format(texImage->TexFormat->BaseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return;
+ }
+ else if (is_depthstencil_format(format)
+ && !is_depthstencil_format(texImage->TexFormat->BaseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
+ return;
+ }
+
+ if (ctx->Pack.BufferObj->Name) {
+ /* packing texture image into a PBO */
+ const GLuint dimensions = (target == GL_TEXTURE_3D) ? 3 : 2;
+ if (!_mesa_validate_pbo_access(dimensions, &ctx->Pack, texImage->Width,
+ texImage->Height, texImage->Depth,
+ format, type, pixels)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetTexImage(invalid PBO access)");
+ return;
+ }
+ }
+
+ /* typically, this will call _mesa_get_teximage() */
+ ctx->Driver.GetTexImage(ctx, target, level, format, type, pixels,
+ texObj, texImage);
+}
+
+
+
+/**
+ * Check if the given texture image is bound to any framebuffer objects
+ * and update/invalidate them.
+ * XXX We're only checking the currently bound framebuffer object for now.
+ * In the future, perhaps struct gl_texture_image should have a pointer (or
+ * list of pointers (yikes)) to the gl_framebuffer(s) which it's bound to.
+ */
+static void
+update_fbo_texture(GLcontext *ctx, struct gl_texture_object *texObj,
+ GLuint face, GLuint level)
+{
+ if (ctx->DrawBuffer->Name) {
+ GLuint i;
+ for (i = 0; i < BUFFER_COUNT; i++) {
+ struct gl_renderbuffer_attachment *att =
+ ctx->DrawBuffer->Attachment + i;
+ if (att->Type == GL_TEXTURE &&
+ att->Texture == texObj &&
+ att->TextureLevel == level &&
+ att->CubeMapFace == face) {
+ ASSERT(att->Texture->Image[att->CubeMapFace][att->TextureLevel]);
+ /* Tell driver about the new renderbuffer texture */
+ ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
+ }
+ }
+ }
+}
+
+
+
+/*
+ * Called from the API. Note that width includes the border.
+ */
+void GLAPIENTRY
+_mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
+ GLsizei width, GLint border, GLenum format,
+ GLenum type, const GLvoid *pixels )
+{
+ GLsizei postConvWidth = width;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (is_color_format(internalFormat)) {
+ _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
+ }
+
+ if (target == GL_TEXTURE_1D) {
+ /* non-proxy target */
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ const GLuint face = texture_face(target);
+
+ if (texture_error_check(ctx, target, level, internalFormat,
+ format, type, 1, postConvWidth, 1, 1, border)) {
+ return; /* error was recorded */
+ }
+
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
+
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
+ return;
+ }
+ else if (texImage->Data) {
+ ctx->Driver.FreeTexImageData( ctx, texImage );
+ }
+ ASSERT(texImage->Data == NULL);
+ clear_teximage_fields(texImage); /* not really needed, but helpful */
+ _mesa_init_teximage_fields(ctx, target, texImage,
+ postConvWidth, 1, 1,
+ border, internalFormat);
+
+ if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
+ _mesa_update_state(ctx);
+
+ ASSERT(ctx->Driver.TexImage1D);
+
+ /* Give the texture to the driver! <pixels> may be null! */
+ (*ctx->Driver.TexImage1D)(ctx, target, level, internalFormat,
+ width, border, format, type, pixels,
+ &ctx->Unpack, texObj, texImage);
+
+ ASSERT(texImage->TexFormat);
+
+ update_fbo_texture(ctx, texObj, face, level);
+
+ /* state update */
+ texObj->Complete = GL_FALSE;
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ else if (target == GL_PROXY_TEXTURE_1D) {
+ /* Proxy texture: check for errors and update proxy state */
+ struct gl_texture_image *texImage;
+ texImage = _mesa_get_proxy_tex_image(ctx, target, level);
+ if (texture_error_check(ctx, target, level, internalFormat,
+ format, type, 1, postConvWidth, 1, 1, border)) {
+ /* when error, clear all proxy texture image parameters */
+ if (texImage)
+ clear_teximage_fields(texImage);
+ }
+ else {
+ /* no error, set the tex image parameters */
+ ASSERT(texImage);
+ _mesa_init_teximage_fields(ctx, target, texImage,
+ postConvWidth, 1, 1,
+ border, internalFormat);
+ texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
+ internalFormat, format, type);
+ }
+ }
+ else {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
+ return;
+ }
+}
+
+
+void GLAPIENTRY
+_mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
+ GLsizei width, GLsizei height, GLint border,
+ GLenum format, GLenum type,
+ const GLvoid *pixels )
+{
+ GLsizei postConvWidth = width, postConvHeight = height;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (is_color_format(internalFormat)) {
+ _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
+ &postConvHeight);
+ }
+
+ if (target == GL_TEXTURE_2D ||
+ (ctx->Extensions.ARB_texture_cube_map &&
+ target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
+ target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) ||
+ (ctx->Extensions.NV_texture_rectangle &&
+ target == GL_TEXTURE_RECTANGLE_NV)) {
+ /* non-proxy target */
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ const GLuint face = texture_face(target);
+
+ if (texture_error_check(ctx, target, level, internalFormat,
+ format, type, 2, postConvWidth, postConvHeight,
+ 1, border)) {
+ return; /* error was recorded */
+ }
+
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
+ return;
+ }
+ else if (texImage->Data) {
+ ctx->Driver.FreeTexImageData( ctx, texImage );
+ }
+ ASSERT(texImage->Data == NULL);
+ clear_teximage_fields(texImage); /* not really needed, but helpful */
+ _mesa_init_teximage_fields(ctx, target, texImage,
+ postConvWidth, postConvHeight, 1,
+ border, internalFormat);
+
+ if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
+ _mesa_update_state(ctx);
+
+ ASSERT(ctx->Driver.TexImage2D);
+
+ /* Give the texture to the driver! <pixels> may be null! */
+ (*ctx->Driver.TexImage2D)(ctx, target, level, internalFormat,
+ width, height, border, format, type, pixels,
+ &ctx->Unpack, texObj, texImage);
+
+ ASSERT(texImage->TexFormat);
+
+ update_fbo_texture(ctx, texObj, face, level);
+
+ /* state update */
+ texObj->Complete = GL_FALSE;
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ else if (target == GL_PROXY_TEXTURE_2D ||
+ (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
+ ctx->Extensions.ARB_texture_cube_map) ||
+ (target == GL_PROXY_TEXTURE_RECTANGLE_NV &&
+ ctx->Extensions.NV_texture_rectangle)) {
+ /* Proxy texture: check for errors and update proxy state */
+ struct gl_texture_image *texImage;
+ texImage = _mesa_get_proxy_tex_image(ctx, target, level);
+ if (texture_error_check(ctx, target, level, internalFormat,
+ format, type, 2, postConvWidth, postConvHeight,
+ 1, border)) {
+ /* when error, clear all proxy texture image parameters */
+ if (texImage)
+ clear_teximage_fields(ctx->Texture.Proxy2D->Image[0][level]);
+ }
+ else {
+ /* no error, set the tex image parameters */
+ _mesa_init_teximage_fields(ctx, target, texImage,
+ postConvWidth, postConvHeight, 1,
+ border, internalFormat);
+ texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
+ internalFormat, format, type);
+ }
+ }
+ else {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage2D(target)" );
+ return;
+ }
+}
+
+
+/*
+ * Called by the API or display list executor.
+ * Note that width and height include the border.
+ */
+void GLAPIENTRY
+_mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLint border, GLenum format, GLenum type,
+ const GLvoid *pixels )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (target == GL_TEXTURE_3D) {
+ /* non-proxy target */
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ const GLuint face = texture_face(target);
+
+ if (texture_error_check(ctx, target, level, (GLint) internalFormat,
+ format, type, 3, width, height, depth, border)) {
+ return; /* error was recorded */
+ }
+
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
+ return;
+ }
+ else if (texImage->Data) {
+ ctx->Driver.FreeTexImageData( ctx, texImage );
+ }
+ ASSERT(texImage->Data == NULL);
+ clear_teximage_fields(texImage); /* not really needed, but helpful */
+ _mesa_init_teximage_fields(ctx, target, texImage,
+ width, height, depth,
+ border, internalFormat);
+
+ if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
+ _mesa_update_state(ctx);
+
+ ASSERT(ctx->Driver.TexImage3D);
+
+ /* Give the texture to the driver! <pixels> may be null! */
+ (*ctx->Driver.TexImage3D)(ctx, target, level, internalFormat,
+ width, height, depth, border, format, type,
+ pixels, &ctx->Unpack, texObj, texImage);
+
+ ASSERT(texImage->TexFormat);
+
+ update_fbo_texture(ctx, texObj, face, level);
+
+ /* state update */
+ texObj->Complete = GL_FALSE;
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ else if (target == GL_PROXY_TEXTURE_3D) {
+ /* Proxy texture: check for errors and update proxy state */
+ struct gl_texture_image *texImage;
+ texImage = _mesa_get_proxy_tex_image(ctx, target, level);
+ if (texture_error_check(ctx, target, level, internalFormat,
+ format, type, 3, width, height, depth, border)) {
+ /* when error, clear all proxy texture image parameters */
+ if (texImage)
+ clear_teximage_fields(texImage);
+ }
+ else {
+ /* no error, set the tex image parameters */
+ _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
+ border, internalFormat);
+ texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
+ internalFormat, format, type);
+ }
+ }
+ else {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
+ return;
+ }
+}
+
+
+void GLAPIENTRY
+_mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLint border, GLenum format, GLenum type,
+ const GLvoid *pixels )
+{
+ _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
+ depth, border, format, type, pixels);
+}
+
+
+
+void GLAPIENTRY
+_mesa_TexSubImage1D( GLenum target, GLint level,
+ GLint xoffset, GLsizei width,
+ GLenum format, GLenum type,
+ const GLvoid *pixels )
+{
+ GLsizei postConvWidth = width;
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
+ _mesa_update_state(ctx);
+
+ /* XXX should test internal format */
+ if (is_color_format(format)) {
+ _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
+ }
+
+ if (subtexture_error_check(ctx, 1, target, level, xoffset, 0, 0,
+ postConvWidth, 1, 1, format, type)) {
+ return; /* error was detected */
+ }
+
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
+ assert(texImage);
+
+ if (width == 0)
+ return; /* no-op, not an error */
+
+ /* If we have a border, xoffset=-1 is legal. Bias by border width */
+ xoffset += texImage->Border;
+
+ ASSERT(ctx->Driver.TexSubImage1D);
+ (*ctx->Driver.TexSubImage1D)(ctx, target, level, xoffset, width,
+ format, type, pixels, &ctx->Unpack,
+ texObj, texImage);
+ ctx->NewState |= _NEW_TEXTURE;
+}
+
+
+void GLAPIENTRY
+_mesa_TexSubImage2D( GLenum target, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const GLvoid *pixels )
+{
+ GLsizei postConvWidth = width, postConvHeight = height;
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
+ _mesa_update_state(ctx);
+
+ /* XXX should test internal format */
+ if (is_color_format(format)) {
+ _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
+ &postConvHeight);
+ }
+
+ if (subtexture_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
+ postConvWidth, postConvHeight, 1, format, type)) {
+ return; /* error was detected */
+ }
+
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
+ assert(texImage);
+
+ if (width == 0 || height == 0)
+ return; /* no-op, not an error */
+
+ /* If we have a border, xoffset=-1 is legal. Bias by border width */
+ xoffset += texImage->Border;
+ yoffset += texImage->Border;
+
+ ASSERT(ctx->Driver.TexSubImage2D);
+ (*ctx->Driver.TexSubImage2D)(ctx, target, level, xoffset, yoffset,
+ width, height, format, type, pixels,
+ &ctx->Unpack, texObj, texImage);
+ ctx->NewState |= _NEW_TEXTURE;
+}
+
+
+
+void GLAPIENTRY
+_mesa_TexSubImage3D( GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format, GLenum type,
+ const GLvoid *pixels )
+{
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
+ _mesa_update_state(ctx);
+
+ if (subtexture_error_check(ctx, 3, target, level, xoffset, yoffset, zoffset,
+ width, height, depth, format, type)) {
+ return; /* error was detected */
+ }
+
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
+ assert(texImage);
+
+ if (width == 0 || height == 0 || height == 0)
+ return; /* no-op, not an error */
+
+ /* If we have a border, xoffset=-1 is legal. Bias by border width */
+ xoffset += texImage->Border;
+ yoffset += texImage->Border;
+ zoffset += texImage->Border;
+
+ ASSERT(ctx->Driver.TexSubImage3D);
+ (*ctx->Driver.TexSubImage3D)(ctx, target, level,
+ xoffset, yoffset, zoffset,
+ width, height, depth,
+ format, type, pixels,
+ &ctx->Unpack, texObj, texImage );
+ ctx->NewState |= _NEW_TEXTURE;
+}
+
+
+
+void GLAPIENTRY
+_mesa_CopyTexImage1D( GLenum target, GLint level,
+ GLenum internalFormat,
+ GLint x, GLint y,
+ GLsizei width, GLint border )
+{
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GLsizei postConvWidth = width;
+ const GLuint face = texture_face(target);
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
+ _mesa_update_state(ctx);
+
+ if (is_color_format(internalFormat)) {
+ _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
+ }
+
+ if (copytexture_error_check(ctx, 1, target, level, internalFormat,
+ postConvWidth, 1, border))
+ return;
+
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D");
+ return;
+ }
+ else if (texImage->Data) {
+ ctx->Driver.FreeTexImageData( ctx, texImage );
+ }
+ ASSERT(texImage->Data == NULL);
+
+ clear_teximage_fields(texImage); /* not really needed, but helpful */
+ _mesa_init_teximage_fields(ctx, target, texImage, postConvWidth, 1, 1,
+ border, internalFormat);
+
+
+ ASSERT(ctx->Driver.CopyTexImage1D);
+ (*ctx->Driver.CopyTexImage1D)(ctx, target, level, internalFormat,
+ x, y, width, border);
+
+ ASSERT(texImage->TexFormat);
+
+ update_fbo_texture(ctx, texObj, face, level);
+
+ /* state update */
+ texObj->Complete = GL_FALSE;
+ ctx->NewState |= _NEW_TEXTURE;
+}
+
+
+
+void GLAPIENTRY
+_mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLint border )
+{
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GLsizei postConvWidth = width, postConvHeight = height;
+ const GLuint face = texture_face(target);
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
+ _mesa_update_state(ctx);
+
+ if (is_color_format(internalFormat)) {
+ _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
+ &postConvHeight);
+ }
+
+ if (copytexture_error_check(ctx, 2, target, level, internalFormat,
+ postConvWidth, postConvHeight, border))
+ return;
+
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage2D");
+ return;
+ }
+ else if (texImage->Data) {
+ ctx->Driver.FreeTexImageData( ctx, texImage );
+ }
+ ASSERT(texImage->Data == NULL);
+
+ clear_teximage_fields(texImage); /* not really needed, but helpful */
+ _mesa_init_teximage_fields(ctx, target, texImage,
+ postConvWidth, postConvHeight, 1,
+ border, internalFormat);
+
+ ASSERT(ctx->Driver.CopyTexImage2D);
+ (*ctx->Driver.CopyTexImage2D)(ctx, target, level, internalFormat,
+ x, y, width, height, border);
+
+ ASSERT(texImage->TexFormat);
+
+ update_fbo_texture(ctx, texObj, face, level);
+
+ /* state update */
+ texObj->Complete = GL_FALSE;
+ ctx->NewState |= _NEW_TEXTURE;
+}
+
+
+
+void GLAPIENTRY
+_mesa_CopyTexSubImage1D( GLenum target, GLint level,
+ GLint xoffset, GLint x, GLint y, GLsizei width )
+{
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_image *texImage;
+ GLsizei postConvWidth = width;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
+ _mesa_update_state(ctx);
+
+ /* XXX should test internal format */
+ _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
+
+ if (copytexsubimage_error_check(ctx, 1, target, level,
+ xoffset, 0, 0, postConvWidth, 1))
+ return;
+
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
+ ASSERT(texImage);
+
+ /* If we have a border, xoffset=-1 is legal. Bias by border width */
+ xoffset += texImage->Border;
+
+ ASSERT(ctx->Driver.CopyTexSubImage1D);
+ (*ctx->Driver.CopyTexSubImage1D)(ctx, target, level, xoffset, x, y, width);
+ ctx->NewState |= _NEW_TEXTURE;
+}
+
+
+
+void GLAPIENTRY
+_mesa_CopyTexSubImage2D( GLenum target, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLint x, GLint y, GLsizei width, GLsizei height )
+{
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_image *texImage;
+ GLsizei postConvWidth = width, postConvHeight = height;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
+ _mesa_update_state(ctx);
+
+ /* XXX should test internal format */
+ _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight);
+
+ if (copytexsubimage_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
+ postConvWidth, postConvHeight))
+ return;
+
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
+ ASSERT(texImage);
+
+ /* If we have a border, xoffset=-1 is legal. Bias by border width */
+ xoffset += texImage->Border;
+ yoffset += texImage->Border;
+
+ ASSERT(ctx->Driver.CopyTexSubImage2D);
+ (*ctx->Driver.CopyTexSubImage2D)(ctx, target, level,
+ xoffset, yoffset, x, y, width, height);
+ ctx->NewState |= _NEW_TEXTURE;
+}
+
+
+
+void GLAPIENTRY
+_mesa_CopyTexSubImage3D( GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint x, GLint y, GLsizei width, GLsizei height )
+{
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_image *texImage;
+ GLsizei postConvWidth = width, postConvHeight = height;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
+ _mesa_update_state(ctx);
+
+ /* XXX should test internal format */
+ _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight);
+
+ if (copytexsubimage_error_check(ctx, 3, target, level, xoffset, yoffset,
+ zoffset, postConvWidth, postConvHeight))
+ return;
+
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
+ ASSERT(texImage);
+
+ /* If we have a border, xoffset=-1 is legal. Bias by border width */
+ xoffset += texImage->Border;
+ yoffset += texImage->Border;
+ zoffset += texImage->Border;
+
+ ASSERT(ctx->Driver.CopyTexSubImage3D);
+ (*ctx->Driver.CopyTexSubImage3D)(ctx, target, level,
+ xoffset, yoffset, zoffset,
+ x, y, width, height);
+ ctx->NewState |= _NEW_TEXTURE;
+}
+
+
+
+
+/**********************************************************************/
+/****** Compressed Textures ******/
+/**********************************************************************/
+
+
+/**
+ * Error checking for glCompressedTexImage[123]D().
+ * \return error code or GL_NO_ERROR.
+ */
+static GLenum
+compressed_texture_error_check(GLcontext *ctx, GLint dimensions,
+ GLenum target, GLint level,
+ GLenum internalFormat, GLsizei width,
+ GLsizei height, GLsizei depth, GLint border,
+ GLsizei imageSize)
+{
+ GLint expectedSize, maxLevels = 0, maxTextureSize;
+
+ if (dimensions == 1) {
+ /* 1D compressed textures not allowed */
+ return GL_INVALID_ENUM;
+ }
+ else if (dimensions == 2) {
+ if (target == GL_PROXY_TEXTURE_2D) {
+ maxLevels = ctx->Const.MaxTextureLevels;
+ }
+ else if (target == GL_TEXTURE_2D) {
+ maxLevels = ctx->Const.MaxTextureLevels;
+ }
+ else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
+ if (!ctx->Extensions.ARB_texture_cube_map)
+ return GL_INVALID_ENUM; /*target*/
+ maxLevels = ctx->Const.MaxCubeTextureLevels;
+ }
+ else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
+ target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
+ if (!ctx->Extensions.ARB_texture_cube_map)
+ return GL_INVALID_ENUM; /*target*/
+ maxLevels = ctx->Const.MaxCubeTextureLevels;
+ }
+ else {
+ return GL_INVALID_ENUM; /*target*/
+ }
+ }
+ else if (dimensions == 3) {
+ /* 3D compressed textures not allowed */
+ return GL_INVALID_ENUM;
+ }
+
+ maxTextureSize = 1 << (maxLevels - 1);
+
+ /* This will detect any invalid internalFormat value */
+ if (!is_compressed_format(ctx, internalFormat))
+ return GL_INVALID_ENUM;
+
+ /* This should really never fail */
+ if (_mesa_base_tex_format(ctx, internalFormat) < 0)
+ return GL_INVALID_ENUM;
+
+ if (border != 0)
+ return GL_INVALID_VALUE;
+
+ /*
+ * XXX We should probably use the proxy texture error check function here.
+ */
+ if (width < 1 || width > maxTextureSize ||
+ (!ctx->Extensions.ARB_texture_non_power_of_two && _mesa_bitcount(width) != 1))
+ return GL_INVALID_VALUE;
+
+ if ((height < 1 || height > maxTextureSize ||
+ (!ctx->Extensions.ARB_texture_non_power_of_two && _mesa_bitcount(height) != 1))
+ && dimensions > 1)
+ return GL_INVALID_VALUE;
+
+ if ((depth < 1 || depth > maxTextureSize ||
+ (!ctx->Extensions.ARB_texture_non_power_of_two && _mesa_bitcount(depth) != 1))
+ && dimensions > 2)
+ return GL_INVALID_VALUE;
+
+ /* For cube map, width must equal height */
+ if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
+ target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height)
+ return GL_INVALID_VALUE;
+
+ if (level < 0 || level >= maxLevels)
+ return GL_INVALID_VALUE;
+
+ expectedSize = _mesa_compressed_texture_size_glenum(ctx, width, height,
+ depth, internalFormat);
+ if (expectedSize != imageSize)
+ return GL_INVALID_VALUE;
+
+#if FEATURE_EXT_texture_sRGB
+ if ((internalFormat == GL_COMPRESSED_SRGB_S3TC_DXT1_EXT ||
+ internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT ||
+ internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT ||
+ internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT)
+ && border != 0) {
+ return GL_INVALID_OPERATION;
+ }
+#endif
+
+ return GL_NO_ERROR;
+}
+
+
+/**
+ * Error checking for glCompressedTexSubImage[123]D().
+ * \warning There are some bad assumptions here about the size of compressed
+ * texture tiles (multiple of 4) used to test the validity of the
+ * offset and size parameters.
+ * \return error code or GL_NO_ERROR.
+ */
+static GLenum
+compressed_subtexture_error_check(GLcontext *ctx, GLint dimensions,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format, GLsizei imageSize)
+{
+ GLint expectedSize, maxLevels = 0, maxTextureSize;
+ (void) zoffset;
+
+ if (dimensions == 1) {
+ /* 1D compressed textures not allowed */
+ return GL_INVALID_ENUM;
+ }
+ else if (dimensions == 2) {
+ if (target == GL_PROXY_TEXTURE_2D) {
+ maxLevels = ctx->Const.MaxTextureLevels;
+ }
+ else if (target == GL_TEXTURE_2D) {
+ maxLevels = ctx->Const.MaxTextureLevels;
+ }
+ else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
+ if (!ctx->Extensions.ARB_texture_cube_map)
+ return GL_INVALID_ENUM; /*target*/
+ maxLevels = ctx->Const.MaxCubeTextureLevels;
+ }
+ else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
+ target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
+ if (!ctx->Extensions.ARB_texture_cube_map)
+ return GL_INVALID_ENUM; /*target*/
+ maxLevels = ctx->Const.MaxCubeTextureLevels;
+ }
+ else {
+ return GL_INVALID_ENUM; /*target*/
+ }
+ }
+ else if (dimensions == 3) {
+ /* 3D compressed textures not allowed */
+ return GL_INVALID_ENUM;
+ }
+
+ maxTextureSize = 1 << (maxLevels - 1);
+
+ /* this will catch any invalid compressed format token */
+ if (!is_compressed_format(ctx, format))
+ return GL_INVALID_ENUM;
+
+ if (width < 1 || width > maxTextureSize)
+ return GL_INVALID_VALUE;
+
+ if ((height < 1 || height > maxTextureSize)
+ && dimensions > 1)
+ return GL_INVALID_VALUE;
+
+ if (level < 0 || level >= maxLevels)
+ return GL_INVALID_VALUE;
+
+ /* XXX these tests are specific to the compressed format.
+ * this code should be generalized in some way.
+ */
+ if ((xoffset & 3) != 0 || (yoffset & 3) != 0)
+ return GL_INVALID_VALUE;
+
+ if ((width & 3) != 0 && width != 2 && width != 1)
+ return GL_INVALID_VALUE;
+
+ if ((height & 3) != 0 && height != 2 && height != 1)
+ return GL_INVALID_VALUE;
+
+ expectedSize = _mesa_compressed_texture_size_glenum(ctx, width, height,
+ depth, format);
+ if (expectedSize != imageSize)
+ return GL_INVALID_VALUE;
+
+ return GL_NO_ERROR;
+}
+
+
+
+void GLAPIENTRY
+_mesa_CompressedTexImage1DARB(GLenum target, GLint level,
+ GLenum internalFormat, GLsizei width,
+ GLint border, GLsizei imageSize,
+ const GLvoid *data)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (target == GL_TEXTURE_1D) {
+ /* non-proxy target */
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GLenum error = compressed_texture_error_check(ctx, 1, target, level,
+ internalFormat, width, 1, 1, border, imageSize);
+ if (error) {
+ _mesa_error(ctx, error, "glCompressedTexImage1D");
+ return;
+ }
+
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage1D");
+ return;
+ }
+ else if (texImage->Data) {
+ ctx->Driver.FreeTexImageData( ctx, texImage );
+ }
+ ASSERT(texImage->Data == NULL);
+
+ _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
+ border, internalFormat);
+
+ ASSERT(ctx->Driver.CompressedTexImage1D);
+ (*ctx->Driver.CompressedTexImage1D)(ctx, target, level,
+ internalFormat, width, border,
+ imageSize, data,
+ texObj, texImage);
+
+ /* state update */
+ texObj->Complete = GL_FALSE;
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ else if (target == GL_PROXY_TEXTURE_1D) {
+ /* Proxy texture: check for errors and update proxy state */
+ GLenum error = compressed_texture_error_check(ctx, 1, target, level,
+ internalFormat, width, 1, 1, border, imageSize);
+ if (!error) {
+ ASSERT(ctx->Driver.TestProxyTexImage);
+ error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
+ internalFormat, GL_NONE, GL_NONE,
+ width, 1, 1, border);
+ }
+ if (error) {
+ /* if error, clear all proxy texture image parameters */
+ struct gl_texture_image *texImage;
+ texImage = _mesa_get_proxy_tex_image(ctx, target, level);
+ if (texImage)
+ clear_teximage_fields(texImage);
+ }
+ else {
+ /* store the teximage parameters */
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_image *texImage;
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
+ _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
+ border, internalFormat);
+ }
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage1D(target)");
+ return;
+ }
+}
+
+
+void GLAPIENTRY
+_mesa_CompressedTexImage2DARB(GLenum target, GLint level,
+ GLenum internalFormat, GLsizei width,
+ GLsizei height, GLint border, GLsizei imageSize,
+ const GLvoid *data)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (target == GL_TEXTURE_2D ||
+ (ctx->Extensions.ARB_texture_cube_map &&
+ target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
+ target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
+ /* non-proxy target */
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GLenum error = compressed_texture_error_check(ctx, 2, target, level,
+ internalFormat, width, height, 1, border, imageSize);
+ if (error) {
+ _mesa_error(ctx, error, "glCompressedTexImage2D");
+ return;
+ }
+
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2D");
+ return;
+ }
+ else if (texImage->Data) {
+ ctx->Driver.FreeTexImageData( ctx, texImage );
+ }
+ ASSERT(texImage->Data == NULL);
+
+ _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
+ border, internalFormat);
+
+ ASSERT(ctx->Driver.CompressedTexImage2D);
+ (*ctx->Driver.CompressedTexImage2D)(ctx, target, level,
+ internalFormat, width, height,
+ border, imageSize, data,
+ texObj, texImage);
+
+ /* state update */
+ texObj->Complete = GL_FALSE;
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ else if (target == GL_PROXY_TEXTURE_2D ||
+ (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
+ ctx->Extensions.ARB_texture_cube_map)) {
+ /* Proxy texture: check for errors and update proxy state */
+ GLenum error = compressed_texture_error_check(ctx, 2, target, level,
+ internalFormat, width, height, 1, border, imageSize);
+ if (!error) {
+ ASSERT(ctx->Driver.TestProxyTexImage);
+ error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
+ internalFormat, GL_NONE, GL_NONE,
+ width, height, 1, border);
+ }
+ if (error) {
+ /* if error, clear all proxy texture image parameters */
+ struct gl_texture_image *texImage;
+ texImage = _mesa_get_proxy_tex_image(ctx, target, level);
+ if (texImage)
+ clear_teximage_fields(texImage);
+ }
+ else {
+ /* store the teximage parameters */
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_image *texImage;
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
+ _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
+ border, internalFormat);
+ }
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage2D(target)");
+ return;
+ }
+}
+
+
+void GLAPIENTRY
+_mesa_CompressedTexImage3DARB(GLenum target, GLint level,
+ GLenum internalFormat, GLsizei width,
+ GLsizei height, GLsizei depth, GLint border,
+ GLsizei imageSize, const GLvoid *data)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (target == GL_TEXTURE_3D) {
+ /* non-proxy target */
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GLenum error = compressed_texture_error_check(ctx, 3, target, level,
+ internalFormat, width, height, depth, border, imageSize);
+ if (error) {
+ _mesa_error(ctx, error, "glCompressedTexImage3D");
+ return;
+ }
+
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
+ if (!texImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage3D");
+ return;
+ }
+ else if (texImage->Data) {
+ ctx->Driver.FreeTexImageData( ctx, texImage );
+ }
+ ASSERT(texImage->Data == NULL);
+
+ _mesa_init_teximage_fields(ctx, target, texImage, width, height, depth,
+ border, internalFormat);
+
+ ASSERT(ctx->Driver.CompressedTexImage3D);
+ (*ctx->Driver.CompressedTexImage3D)(ctx, target, level,
+ internalFormat,
+ width, height, depth,
+ border, imageSize, data,
+ texObj, texImage);
+
+ /* state update */
+ texObj->Complete = GL_FALSE;
+ ctx->NewState |= _NEW_TEXTURE;
+ }
+ else if (target == GL_PROXY_TEXTURE_3D) {
+ /* Proxy texture: check for errors and update proxy state */
+ GLenum error = compressed_texture_error_check(ctx, 3, target, level,
+ internalFormat, width, height, depth, border, imageSize);
+ if (!error) {
+ ASSERT(ctx->Driver.TestProxyTexImage);
+ error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
+ internalFormat, GL_NONE, GL_NONE,
+ width, height, depth, border);
+ }
+ if (error) {
+ /* if error, clear all proxy texture image parameters */
+ struct gl_texture_image *texImage;
+ texImage = _mesa_get_proxy_tex_image(ctx, target, level);
+ if (texImage)
+ clear_teximage_fields(texImage);
+ }
+ else {
+ /* store the teximage parameters */
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_image *texImage;
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
+ _mesa_init_teximage_fields(ctx, target, texImage, width, height,
+ depth, border, internalFormat);
+ }
+ }
+ else {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage3D(target)");
+ return;
+ }
+}
+
+
+void GLAPIENTRY
+_mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
+ GLsizei width, GLenum format,
+ GLsizei imageSize, const GLvoid *data)
+{
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GLenum error;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ error = compressed_subtexture_error_check(ctx, 1, target, level,
+ xoffset, 0, 0, /* pos */
+ width, 1, 1, /* size */
+ format, imageSize);
+ if (error) {
+ _mesa_error(ctx, error, "glCompressedTexSubImage1D");
+ return;
+ }
+
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
+ assert(texImage);
+
+ if ((GLint) format != texImage->InternalFormat) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCompressedTexSubImage1D(format)");
+ return;
+ }
+
+ if ((width == 1 || width == 2) && (GLuint) width != texImage->Width) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage1D(width)");
+ return;
+ }
+
+ if (width == 0)
+ return; /* no-op, not an error */
+
+ if (ctx->Driver.CompressedTexSubImage1D) {
+ (*ctx->Driver.CompressedTexSubImage1D)(ctx, target, level,
+ xoffset, width,
+ format, imageSize, data,
+ texObj, texImage);
+ }
+ ctx->NewState |= _NEW_TEXTURE;
+}
+
+
+void GLAPIENTRY
+_mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
+ GLint yoffset, GLsizei width, GLsizei height,
+ GLenum format, GLsizei imageSize,
+ const GLvoid *data)
+{
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GLenum error;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ error = compressed_subtexture_error_check(ctx, 2, target, level,
+ xoffset, yoffset, 0, /* pos */
+ width, height, 1, /* size */
+ format, imageSize);
+ if (error) {
+ /* XXX proxy target? */
+ _mesa_error(ctx, error, "glCompressedTexSubImage2D");
+ return;
+ }
+
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
+ assert(texImage);
+
+ if ((GLint) format != texImage->InternalFormat) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCompressedTexSubImage2D(format)");
+ return;
+ }
+
+ if (((width == 1 || width == 2) && (GLuint) width != texImage->Width) ||
+ ((height == 1 || height == 2) && (GLuint) height != texImage->Height)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage2D(size)");
+ return;
+ }
+
+ if (width == 0 || height == 0)
+ return; /* no-op, not an error */
+
+ if (ctx->Driver.CompressedTexSubImage2D) {
+ (*ctx->Driver.CompressedTexSubImage2D)(ctx, target, level,
+ xoffset, yoffset, width, height,
+ format, imageSize, data,
+ texObj, texImage);
+ }
+ ctx->NewState |= _NEW_TEXTURE;
+}
+
+
+void GLAPIENTRY
+_mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
+ GLint yoffset, GLint zoffset, GLsizei width,
+ GLsizei height, GLsizei depth, GLenum format,
+ GLsizei imageSize, const GLvoid *data)
+{
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GLenum error;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ error = compressed_subtexture_error_check(ctx, 3, target, level,
+ xoffset, yoffset, zoffset,/*pos*/
+ width, height, depth, /*size*/
+ format, imageSize);
+ if (error) {
+ _mesa_error(ctx, error, "glCompressedTexSubImage2D");
+ return;
+ }
+
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
+ assert(texImage);
+
+ if ((GLint) format != texImage->InternalFormat) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCompressedTexSubImage3D(format)");
+ return;
+ }
+
+ if (((width == 1 || width == 2) && (GLuint) width != texImage->Width) ||
+ ((height == 1 || height == 2) && (GLuint) height != texImage->Height) ||
+ ((depth == 1 || depth == 2) && (GLuint) depth != texImage->Depth)) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage3D(size)");
+ return;
+ }
+
+ if (width == 0 || height == 0 || depth == 0)
+ return; /* no-op, not an error */
+
+ if (ctx->Driver.CompressedTexSubImage3D) {
+ (*ctx->Driver.CompressedTexSubImage3D)(ctx, target, level,
+ xoffset, yoffset, zoffset,
+ width, height, depth,
+ format, imageSize, data,
+ texObj, texImage);
+ }
+ ctx->NewState |= _NEW_TEXTURE;
+}
+
+
+void GLAPIENTRY
+_mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img)
+{
+ const struct gl_texture_unit *texUnit;
+ const struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GLint maxLevels;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ texObj = _mesa_select_tex_object(ctx, texUnit, target);
+ if (!texObj) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB");
+ return;
+ }
+
+ maxLevels = _mesa_max_texture_levels(ctx, target);
+ ASSERT(maxLevels > 0); /* 0 indicates bad target, caught above */
+
+ if (level < 0 || level >= maxLevels) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glGetCompressedTexImageARB(level)");
+ return;
+ }
+
+ if (_mesa_is_proxy_texture(target)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB(target)");
+ return;
+ }
+
+ texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
+ if (!texImage) {
+ /* probably invalid mipmap level */
+ _mesa_error(ctx, GL_INVALID_VALUE, "glGetCompressedTexImageARB(level)");
+ return;
+ }
+
+ if (!texImage->IsCompressed) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetCompressedTexImageARB");
+ return;
+ }
+
+ /* this typically calls _mesa_get_compressed_teximage() */
+ ctx->Driver.GetCompressedTexImage(ctx, target, level, img, texObj,texImage);
+}