-/* $Id: s_copypix.c,v 1.42 2002/10/30 20:16:43 brianp Exp $ */
-
/*
* Mesa 3-D graphics library
- * Version: 5.0
+ * Version: 5.1
*
- * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2003 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"),
#include "glheader.h"
-#include "colormac.h"
#include "context.h"
#include "convolve.h"
-#include "feedback.h"
+#include "histogram.h"
#include "macros.h"
#include "imports.h"
-#include "mmath.h"
#include "pixel.h"
#include "s_context.h"
#include "s_depth.h"
-#include "s_histogram.h"
#include "s_pixeltex.h"
#include "s_span.h"
#include "s_stencil.h"
INIT_SPAN(span, GL_BITMAP, 0, 0, SPAN_RGBA);
if (ctx->Depth.Test)
- _mesa_span_default_z(ctx, &span);
+ _swrast_span_default_z(ctx, &span);
if (ctx->Fog.Enabled)
- _mesa_span_default_fog(ctx, &span);
+ _swrast_span_default_fog(ctx, &span);
if (SWRAST_CONTEXT(ctx)->_RasterMask == 0
for (row = 0; row < height; row++) {
GLchan rgba[MAX_WIDTH][4];
GLint i;
- _mesa_read_rgba_span(ctx, ctx->ReadBuffer, width, srcx, srcy + row, rgba);
+ _swrast_read_rgba_span(ctx, ctx->ReadBuffer, width, srcx, srcy + row, rgba);
/* convert GLchan to GLfloat */
for (i = 0; i < width; i++) {
*dest++ = (GLfloat) rgba[i][RCOMP] * (1.0F / CHAN_MAXF);
span.x = destx;
span.y = dy;
span.end = width;
- _mesa_write_zoomed_rgba_span(ctx, &span,
+ _swrast_write_zoomed_rgba_span(ctx, &span,
(CONST GLchan (*)[4])span.array->rgba,
- desty);
+ desty, 0);
}
else {
span.x = destx;
span.y = dy;
span.end = width;
- _mesa_write_rgba_span(ctx, &span);
+ _swrast_write_rgba_span(ctx, &span);
}
}
stepy = 1;
}
- overlapping = regions_overlap(srcx, srcy, destx, desty, width, height,
- ctx->Pixel.ZoomX, ctx->Pixel.ZoomY);
+ if (ctx->DrawBuffer == ctx->ReadBuffer) {
+ overlapping = regions_overlap(srcx, srcy, destx, desty, width, height,
+ ctx->Pixel.ZoomX, ctx->Pixel.ZoomY);
+ }
+ else {
+ overlapping = GL_FALSE;
+ }
if (ctx->Depth.Test)
- _mesa_span_default_z(ctx, &span);
+ _swrast_span_default_z(ctx, &span);
if (ctx->Fog.Enabled)
- _mesa_span_default_fog(ctx, &span);
+ _swrast_span_default_fog(ctx, &span);
if (SWRAST_CONTEXT(ctx)->_RasterMask == 0
&& !zoom
/* read the source image */
p = tmpImage;
for (j = 0; j < height; j++, ssy += stepy) {
- _mesa_read_rgba_span( ctx, ctx->ReadBuffer, width, srcx, ssy,
+ _swrast_read_rgba_span( ctx, ctx->ReadBuffer, width, srcx, ssy,
(GLchan (*)[4]) p );
p += width * 4;
}
/* 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;
}
/* get from framebuffer */
if (changeBuffer)
_swrast_use_read_buffer(ctx);
- _mesa_read_rgba_span( ctx, ctx->ReadBuffer, width, srcx, sy,
+ ASSERT(width < MAX_WIDTH);
+ _swrast_read_rgba_span( ctx, ctx->ReadBuffer, width, srcx, sy,
span.array->rgba );
if (changeBuffer)
_swrast_use_draw_buffer(ctx);
_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;
span.y = dy;
span.end = width;
- _mesa_write_zoomed_rgba_span(ctx, &span,
+ _swrast_write_zoomed_rgba_span(ctx, &span,
(CONST GLchan (*)[4]) span.array->rgba,
- desty);
+ desty, 0);
}
else {
span.x = destx;
span.y = dy;
span.end = width;
- _mesa_write_rgba_span(ctx, &span);
+ _swrast_write_rgba_span(ctx, &span);
}
}
}
-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;
stepy = 1;
}
- overlapping = regions_overlap(srcx, srcy, destx, desty, width, height,
- ctx->Pixel.ZoomX, ctx->Pixel.ZoomY);
+ if (ctx->DrawBuffer == ctx->ReadBuffer) {
+ overlapping = regions_overlap(srcx, srcy, destx, desty, width, height,
+ ctx->Pixel.ZoomX, ctx->Pixel.ZoomY);
+ }
+ else {
+ overlapping = GL_FALSE;
+ }
if (ctx->Depth.Test)
- _mesa_span_default_z(ctx, &span);
+ _swrast_span_default_z(ctx, &span);
if (ctx->Fog.Enabled)
- _mesa_span_default_fog(ctx, &span);
+ _swrast_span_default_fog(ctx, &span);
/* If read and draw buffer are different we must do buffer switching */
changeBuffer = ctx->Pixel.ReadBuffer != ctx->Color.DrawBuffer
/* read the image */
p = tmpImage;
for (j = 0; j < height; j++, ssy += stepy) {
- _mesa_read_index_span( ctx, ctx->ReadBuffer, width, srcx, ssy, p );
+ _swrast_read_index_span( ctx, ctx->ReadBuffer, width, srcx, ssy, p );
p += width;
}
p = tmpImage;
}
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;
else {
if (changeBuffer)
_swrast_use_read_buffer(ctx);
- _mesa_read_index_span( ctx, ctx->ReadBuffer, width, srcx, sy,
+ _swrast_read_index_span( ctx, ctx->ReadBuffer, width, srcx, sy,
span.array->index );
if (changeBuffer)
_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 );
}
_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);
+ _swrast_write_zoomed_index_span(ctx, &span, desty, 0);
else
- _mesa_write_index_span(ctx, &span);
+ _swrast_write_index_span(ctx, &span);
}
if (overlapping)
/*
* 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;
stepy = 1;
}
- overlapping = regions_overlap(srcx, srcy, destx, desty, width, height,
- ctx->Pixel.ZoomX, ctx->Pixel.ZoomY);
+ if (ctx->DrawBuffer == ctx->ReadBuffer) {
+ overlapping = regions_overlap(srcx, srcy, destx, desty, width, height,
+ ctx->Pixel.ZoomX, ctx->Pixel.ZoomY);
+ }
+ else {
+ overlapping = GL_FALSE;
+ }
- _mesa_span_default_color(ctx, &span);
+ _swrast_span_default_color(ctx, &span);
if (ctx->Fog.Enabled)
- _mesa_span_default_fog(ctx, &span);
+ _swrast_span_default_fog(ctx, &span);
if (overlapping) {
GLint ssy = sy;
}
p = tmpImage;
for (j = 0; j < height; j++, ssy += stepy) {
- _mesa_read_depth_span_float(ctx, width, srcx, ssy, p);
+ _swrast_read_depth_span_float(ctx, width, srcx, ssy, p);
p += width;
}
p = tmpImage;
}
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;
}
else {
- _mesa_read_depth_span_float(ctx, width, srcx, sy, depth);
+ _swrast_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 );
+ _swrast_write_zoomed_rgba_span( ctx, &span,
+ (const GLchan (*)[4])span.array->rgba, desty, 0 );
else
- _mesa_write_rgba_span(ctx, &span);
+ _swrast_write_rgba_span(ctx, &span);
}
else {
if (zoom)
- _mesa_write_zoomed_index_span( ctx, &span, desty );
+ _swrast_write_zoomed_index_span( ctx, &span, desty, 0 );
else
- _mesa_write_index_span(ctx, &span);
+ _swrast_write_index_span(ctx, &span);
}
}
-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;
stepy = 1;
}
- overlapping = regions_overlap(srcx, srcy, destx, desty, width, height,
- ctx->Pixel.ZoomX, ctx->Pixel.ZoomY);
+ if (ctx->DrawBuffer == ctx->ReadBuffer) {
+ overlapping = regions_overlap(srcx, srcy, destx, desty, width, height,
+ ctx->Pixel.ZoomX, ctx->Pixel.ZoomY);
+ }
+ else {
+ overlapping = GL_FALSE;
+ }
if (overlapping) {
GLint ssy = sy;
}
p = tmpImage;
for (j = 0; j < height; j++, ssy += stepy) {
- _mesa_read_stencil_span( ctx, width, srcx, ssy, p );
+ _swrast_read_stencil_span( ctx, width, srcx, ssy, p );
p += width;
}
p = tmpImage;
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;
}
else {
- _mesa_read_stencil_span( ctx, width, srcx, sy, stencil );
+ _swrast_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 );
}
_mesa_map_stencil( ctx, width, stencil );
}
+ /* Write stencil values */
if (zoom) {
- _mesa_write_zoomed_stencil_span( ctx, width, destx, dy, stencil, desty );
+ _swrast_write_zoomed_stencil_span( ctx, width, destx, dy,
+ stencil, desty, 0 );
}
else {
- _mesa_write_stencil_span( ctx, width, destx, dy, stencil );
+ _swrast_write_stencil_span( ctx, width, destx, dy, stencil );
}
}
-
void
_swrast_CopyPixels( GLcontext *ctx,
GLint srcx, GLint srcy, GLsizei width, GLsizei height,
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