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-rw-r--r--src/mesa/swrast/s_copypix.c60
1 files changed, 36 insertions, 24 deletions
diff --git a/src/mesa/swrast/s_copypix.c b/src/mesa/swrast/s_copypix.c
index 31fffff6270..3a8d05b7f3d 100644
--- a/src/mesa/swrast/s_copypix.c
+++ b/src/mesa/swrast/s_copypix.c
@@ -1,8 +1,8 @@
-/* $Id: s_copypix.c,v 1.42 2002/10/30 20:16:43 brianp Exp $ */
+/* $Id: s_copypix.c,v 1.43 2002/12/05 04:46:54 brianp Exp $ */
/*
* Mesa 3-D graphics library
- * Version: 5.0
+ * Version: 5.1
*
* Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
*
@@ -26,13 +26,10 @@
#include "glheader.h"
-#include "colormac.h"
#include "context.h"
#include "convolve.h"
-#include "feedback.h"
#include "macros.h"
#include "imports.h"
-#include "mmath.h"
#include "pixel.h"
#include "s_context.h"
@@ -263,7 +260,7 @@ copy_conv_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
span.end = width;
_mesa_write_zoomed_rgba_span(ctx, &span,
(CONST GLchan (*)[4])span.array->rgba,
- desty);
+ desty, 0);
}
else {
span.x = destx;
@@ -370,6 +367,7 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
/* Get source pixels */
if (overlapping) {
/* get from buffered image */
+ ASSERT(width < MAX_WIDTH);
MEMCPY(span.array->rgba, p, width * sizeof(GLchan) * 4);
p += width * 4;
}
@@ -377,6 +375,7 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
/* get from framebuffer */
if (changeBuffer)
_swrast_use_read_buffer(ctx);
+ ASSERT(width < MAX_WIDTH);
_mesa_read_rgba_span( ctx, ctx->ReadBuffer, width, srcx, sy,
span.array->rgba );
if (changeBuffer)
@@ -468,9 +467,10 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
_swrast_pixel_texture(ctx, &span);
}
+ /* Write color span */
if (quick_draw && dy >= 0 && dy < (GLint) ctx->DrawBuffer->Height) {
(*swrast->Driver.WriteRGBASpan)( ctx, width, destx, dy,
- (const GLchan (*)[4])span.array->rgba, NULL );
+ (const GLchan (*)[4])span.array->rgba, NULL );
}
else if (zoom) {
span.x = destx;
@@ -478,7 +478,7 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
span.end = width;
_mesa_write_zoomed_rgba_span(ctx, &span,
(CONST GLchan (*)[4]) span.array->rgba,
- desty);
+ desty, 0);
}
else {
span.x = destx;
@@ -493,9 +493,10 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
}
-static void copy_ci_pixels( GLcontext *ctx,
- GLint srcx, GLint srcy, GLint width, GLint height,
- GLint destx, GLint desty )
+static void
+copy_ci_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
+ GLint width, GLint height,
+ GLint destx, GLint desty )
{
GLuint *tmpImage,*p;
GLint sy, dy, stepy;
@@ -563,6 +564,7 @@ static void copy_ci_pixels( GLcontext *ctx,
}
for (j = 0; j < height; j++, sy += stepy, dy += stepy) {
+ /* Get color indexes */
if (overlapping) {
MEMCPY(span.array->index, p, width * sizeof(GLuint));
p += width;
@@ -576,6 +578,7 @@ static void copy_ci_pixels( GLcontext *ctx,
_swrast_use_draw_buffer(ctx);
}
+ /* Apply shift, offset, look-up table */
if (shift_or_offset) {
_mesa_shift_and_offset_ci( ctx, width, span.array->index );
}
@@ -583,11 +586,12 @@ static void copy_ci_pixels( GLcontext *ctx,
_mesa_map_ci( ctx, width, span.array->index );
}
+ /* write color indexes */
span.x = destx;
span.y = dy;
span.end = width;
if (zoom)
- _mesa_write_zoomed_index_span(ctx, &span, desty);
+ _mesa_write_zoomed_index_span(ctx, &span, desty, 0);
else
_mesa_write_index_span(ctx, &span);
}
@@ -601,11 +605,11 @@ static void copy_ci_pixels( GLcontext *ctx,
/*
* TODO: Optimize!!!!
*/
-static void copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
- GLint width, GLint height,
- GLint destx, GLint desty )
+static void
+copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
+ GLint width, GLint height,
+ GLint destx, GLint desty )
{
- GLfloat depth[MAX_WIDTH];
GLfloat *p, *tmpImage;
GLint sy, dy, stepy;
GLint i, j;
@@ -661,6 +665,9 @@ static void copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
}
for (j = 0; j < height; j++, sy += stepy, dy += stepy) {
+ GLfloat depth[MAX_WIDTH];
+
+ /* get depth values */
if (overlapping) {
MEMCPY(depth, p, width * sizeof(GLfloat));
p += width;
@@ -669,25 +676,26 @@ static void copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
_mesa_read_depth_span_float(ctx, width, srcx, sy, depth);
}
+ /* apply scale and bias */
for (i = 0; i < width; i++) {
GLfloat d = depth[i] * ctx->Pixel.DepthScale + ctx->Pixel.DepthBias;
span.array->z[i] = (GLdepth) (CLAMP(d, 0.0F, 1.0F) * ctx->DepthMax);
}
+ /* write depth values */
span.x = destx;
span.y = dy;
span.end = width;
if (ctx->Visual.rgbMode) {
if (zoom)
_mesa_write_zoomed_rgba_span( ctx, &span,
- (const GLchan (*)[4])span.array->rgba,
- desty );
+ (const GLchan (*)[4])span.array->rgba, desty, 0 );
else
_mesa_write_rgba_span(ctx, &span);
}
else {
if (zoom)
- _mesa_write_zoomed_index_span( ctx, &span, desty );
+ _mesa_write_zoomed_index_span( ctx, &span, desty, 0 );
else
_mesa_write_index_span(ctx, &span);
}
@@ -699,9 +707,10 @@ static void copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
-static void copy_stencil_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
- GLint width, GLint height,
- GLint destx, GLint desty )
+static void
+copy_stencil_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
+ GLint width, GLint height,
+ GLint destx, GLint desty )
{
GLint sy, dy, stepy;
GLint j;
@@ -754,6 +763,7 @@ static void copy_stencil_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
for (j = 0; j < height; j++, sy += stepy, dy += stepy) {
GLstencil stencil[MAX_WIDTH];
+ /* Get stencil values */
if (overlapping) {
MEMCPY(stencil, p, width * sizeof(GLstencil));
p += width;
@@ -762,6 +772,7 @@ static void copy_stencil_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
_mesa_read_stencil_span( ctx, width, srcx, sy, stencil );
}
+ /* Apply shift, offset, look-up table */
if (shift_or_offset) {
_mesa_shift_and_offset_stencil( ctx, width, stencil );
}
@@ -769,8 +780,10 @@ static void copy_stencil_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
_mesa_map_stencil( ctx, width, stencil );
}
+ /* Write stencil values */
if (zoom) {
- _mesa_write_zoomed_stencil_span( ctx, width, destx, dy, stencil, desty );
+ _mesa_write_zoomed_stencil_span( ctx, width, destx, dy,
+ stencil, desty, 0 );
}
else {
_mesa_write_stencil_span( ctx, width, destx, dy, stencil );
@@ -783,7 +796,6 @@ static void copy_stencil_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
-
void
_swrast_CopyPixels( GLcontext *ctx,
GLint srcx, GLint srcy, GLsizei width, GLsizei height,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 13:50:12 +0000