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-rw-r--r--src/mesa/drivers/dri/common/spantmp.h338
1 files changed, 338 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/common/spantmp.h b/src/mesa/drivers/dri/common/spantmp.h
new file mode 100644
index 0000000..d5608b8
--- /dev/null
+++ b/src/mesa/drivers/dri/common/spantmp.h
@@ -0,0 +1,338 @@
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * (C) Copyright IBM Corporation 2002, 2003
+ * 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
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, 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 (including the next
+ * paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEM, IBM AND/OR THEIR SUPPLIERS 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.
+ *
+ * Authors:
+ * Keith Whitwell <keithw@tungstengraphics.com>
+ * Gareth Hughes <gareth@nvidia.com>
+ */
+
+#include "spantmp_common.h"
+
+#ifndef DBG
+#define DBG 0
+#endif
+
+#ifndef HW_READ_CLIPLOOP
+#define HW_READ_CLIPLOOP() HW_CLIPLOOP()
+#endif
+
+#ifndef HW_WRITE_CLIPLOOP
+#define HW_WRITE_CLIPLOOP() HW_CLIPLOOP()
+#endif
+
+
+static void TAG(WriteRGBASpan)( GLcontext *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ const void *values, const GLubyte mask[] )
+{
+ HW_WRITE_LOCK()
+ {
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ GLint x1;
+ GLint n1;
+ LOCAL_VARS;
+
+ y = Y_FLIP(y);
+
+ HW_WRITE_CLIPLOOP()
+ {
+ GLint i = 0;
+ CLIPSPAN(x,y,n,x1,n1,i);
+
+ if (DBG) fprintf(stderr, "WriteRGBASpan %d..%d (x1 %d)\n",
+ (int)i, (int)n1, (int)x1);
+
+ if (mask)
+ {
+ for (;n1>0;i++,x1++,n1--)
+ if (mask[i])
+ WRITE_RGBA( x1, y,
+ rgba[i][0], rgba[i][1],
+ rgba[i][2], rgba[i][3] );
+ }
+ else
+ {
+ for (;n1>0;i++,x1++,n1--)
+ WRITE_RGBA( x1, y,
+ rgba[i][0], rgba[i][1],
+ rgba[i][2], rgba[i][3] );
+ }
+ }
+ HW_ENDCLIPLOOP();
+ }
+ HW_WRITE_UNLOCK();
+}
+
+static void TAG(WriteRGBSpan)( GLcontext *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ const void *values, const GLubyte mask[] )
+{
+ HW_WRITE_LOCK()
+ {
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values;
+ GLint x1;
+ GLint n1;
+ LOCAL_VARS;
+
+ y = Y_FLIP(y);
+
+ HW_WRITE_CLIPLOOP()
+ {
+ GLint i = 0;
+ CLIPSPAN(x,y,n,x1,n1,i);
+
+ if (DBG) fprintf(stderr, "WriteRGBSpan %d..%d (x1 %d)\n",
+ (int)i, (int)n1, (int)x1);
+
+ if (mask)
+ {
+ for (;n1>0;i++,x1++,n1--)
+ if (mask[i])
+ WRITE_RGBA( x1, y, rgb[i][0], rgb[i][1], rgb[i][2], 255 );
+ }
+ else
+ {
+ for (;n1>0;i++,x1++,n1--)
+ WRITE_RGBA( x1, y, rgb[i][0], rgb[i][1], rgb[i][2], 255 );
+ }
+ }
+ HW_ENDCLIPLOOP();
+ }
+ HW_WRITE_UNLOCK();
+}
+
+static void TAG(WriteRGBAPixels)( GLcontext *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, const GLint x[], const GLint y[],
+ const void *values, const GLubyte mask[] )
+{
+ HW_WRITE_LOCK()
+ {
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values;
+ GLuint i;
+ LOCAL_VARS;
+
+ if (DBG) fprintf(stderr, "WriteRGBAPixels\n");
+
+ HW_WRITE_CLIPLOOP()
+ {
+ if (mask)
+ {
+ for (i=0;i<n;i++)
+ {
+ if (mask[i]) {
+ const int fy = Y_FLIP(y[i]);
+ if (CLIPPIXEL(x[i],fy))
+ WRITE_RGBA( x[i], fy,
+ rgba[i][0], rgba[i][1],
+ rgba[i][2], rgba[i][3] );
+ }
+ }
+ }
+ else
+ {
+ for (i=0;i<n;i++)
+ {
+ const int fy = Y_FLIP(y[i]);
+ if (CLIPPIXEL(x[i],fy))
+ WRITE_RGBA( x[i], fy,
+ rgba[i][0], rgba[i][1],
+ rgba[i][2], rgba[i][3] );
+ }
+ }
+ }
+ HW_ENDCLIPLOOP();
+ }
+ HW_WRITE_UNLOCK();
+}
+
+
+static void TAG(WriteMonoRGBASpan)( GLcontext *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ const void *value,
+ const GLubyte mask[] )
+{
+ HW_WRITE_LOCK()
+ {
+ const GLubyte *color = (const GLubyte *) value;
+ GLint x1;
+ GLint n1;
+ LOCAL_VARS;
+ INIT_MONO_PIXEL(p, color);
+
+ y = Y_FLIP( y );
+
+ if (DBG) fprintf(stderr, "WriteMonoRGBASpan\n");
+
+ HW_WRITE_CLIPLOOP()
+ {
+ GLint i = 0;
+ CLIPSPAN(x,y,n,x1,n1,i);
+ if (mask)
+ {
+ for (;n1>0;i++,x1++,n1--)
+ if (mask[i])
+ WRITE_PIXEL( x1, y, p );
+ }
+ else
+ {
+ for (;n1>0;i++,x1++,n1--)
+ WRITE_PIXEL( x1, y, p );
+ }
+ }
+ HW_ENDCLIPLOOP();
+ }
+ HW_WRITE_UNLOCK();
+}
+
+
+static void TAG(WriteMonoRGBAPixels)( GLcontext *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n,
+ const GLint x[], const GLint y[],
+ const void *value,
+ const GLubyte mask[] )
+{
+ HW_WRITE_LOCK()
+ {
+ const GLubyte *color = (const GLubyte *) value;
+ GLuint i;
+ LOCAL_VARS;
+ INIT_MONO_PIXEL(p, color);
+
+ if (DBG) fprintf(stderr, "WriteMonoRGBAPixels\n");
+
+ HW_WRITE_CLIPLOOP()
+ {
+ if (mask)
+ {
+ for (i=0;i<n;i++)
+ if (mask[i]) {
+ int fy = Y_FLIP(y[i]);
+ if (CLIPPIXEL( x[i], fy ))
+ WRITE_PIXEL( x[i], fy, p );
+ }
+ }
+ else
+ {
+ for (i=0;i<n;i++) {
+ int fy = Y_FLIP(y[i]);
+ if (CLIPPIXEL( x[i], fy ))
+ WRITE_PIXEL( x[i], fy, p );
+ }
+ }
+ }
+ HW_ENDCLIPLOOP();
+ }
+ HW_WRITE_UNLOCK();
+}
+
+
+static void TAG(ReadRGBASpan)( GLcontext *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ void *values)
+{
+ HW_READ_LOCK()
+ {
+ GLubyte (*rgba)[4] = (GLubyte (*)[4]) values;
+ GLint x1,n1;
+ LOCAL_VARS;
+
+ y = Y_FLIP(y);
+
+ if (DBG) fprintf(stderr, "ReadRGBASpan\n");
+
+ HW_READ_CLIPLOOP()
+ {
+ GLint i = 0;
+ CLIPSPAN(x,y,n,x1,n1,i);
+ for (;n1>0;i++,x1++,n1--)
+ READ_RGBA( rgba[i], x1, y );
+ }
+ HW_ENDCLIPLOOP();
+ }
+ HW_READ_UNLOCK();
+}
+
+
+static void TAG(ReadRGBAPixels)( GLcontext *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n, const GLint x[], const GLint y[],
+ void *values )
+{
+ HW_READ_LOCK()
+ {
+ GLubyte (*rgba)[4] = (GLubyte (*)[4]) values;
+ const GLubyte *mask = NULL; /* remove someday */
+ GLuint i;
+ LOCAL_VARS;
+
+ if (DBG) fprintf(stderr, "ReadRGBAPixels\n");
+
+ HW_READ_CLIPLOOP()
+ {
+ if (mask)
+ {
+ for (i=0;i<n;i++)
+ if (mask[i]) {
+ int fy = Y_FLIP( y[i] );
+ if (CLIPPIXEL( x[i], fy ))
+ READ_RGBA( rgba[i], x[i], fy );
+ }
+ }
+ else
+ {
+ for (i=0;i<n;i++) {
+ int fy = Y_FLIP( y[i] );
+ if (CLIPPIXEL( x[i], fy ))
+ READ_RGBA( rgba[i], x[i], fy );
+ }
+ }
+ }
+ HW_ENDCLIPLOOP();
+ }
+ HW_READ_UNLOCK();
+}
+
+
+static void TAG(InitPointers)(struct gl_renderbuffer *rb)
+{
+ rb->PutRow = TAG(WriteRGBASpan);
+ rb->PutRowRGB = TAG(WriteRGBSpan);
+ rb->PutMonoRow = TAG(WriteMonoRGBASpan);
+ rb->PutValues = TAG(WriteRGBAPixels);
+ rb->PutMonoValues = TAG(WriteMonoRGBAPixels);
+ rb->GetValues = TAG(ReadRGBAPixels);
+ rb->GetRow = TAG(ReadRGBASpan);
+}
+
+
+#undef WRITE_PIXEL
+#undef WRITE_RGBA
+#undef READ_RGBA
+#undef TAG