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Diffstat (limited to 'src/mesa/swrast/s_zoom.c')
-rw-r--r--src/mesa/swrast/s_zoom.c137
1 files changed, 102 insertions, 35 deletions
diff --git a/src/mesa/swrast/s_zoom.c b/src/mesa/swrast/s_zoom.c
index 3fd914083f9..29b8df41b7e 100644
--- a/src/mesa/swrast/s_zoom.c
+++ b/src/mesa/swrast/s_zoom.c
@@ -1,8 +1,8 @@
/*
* Mesa 3-D graphics library
- * Version: 6.5
+ * Version: 6.5.2
*
- * Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
+ * 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"),
@@ -119,11 +119,11 @@ unzoom_x(GLfloat zoomX, GLint imageX, GLint zx)
* index/depth_span().
*/
static void
-zoom_span( GLcontext *ctx, GLint imgX, GLint imgY, const struct sw_span *span,
+zoom_span( GLcontext *ctx, GLint imgX, GLint imgY, const SWspan *span,
const GLvoid *src, GLenum format )
{
- struct sw_span zoomed;
- struct span_arrays zoomed_arrays; /* this is big! */
+ SWspan zoomed;
+ SWspanarrays zoomed_arrays; /* this is big! */
GLint x0, x1, y0, y1;
GLint zoomedWidth;
@@ -144,6 +144,19 @@ zoom_span( GLcontext *ctx, GLint imgX, GLint imgY, const struct sw_span *span,
zoomed.x = x0;
zoomed.end = zoomedWidth;
zoomed.array = &zoomed_arrays;
+ zoomed_arrays.ChanType = span->array->ChanType;
+ /* XXX temporary */
+#if CHAN_TYPE == GL_UNSIGNED_BYTE
+ zoomed_arrays.rgba = zoomed_arrays.color.sz1.rgba;
+ zoomed_arrays.spec = zoomed_arrays.color.sz1.spec;
+#elif CHAN_TYPE == GL_UNSIGNED_SHORT
+ zoomed_arrays.rgba = zoomed_arrays.color.sz2.rgba;
+ zoomed_arrays.spec = zoomed_arrays.color.sz2.spec;
+#else
+ zoomed_arrays.rgba = zoomed_arrays.color.sz4.rgba;
+ zoomed_arrays.spec = zoomed_arrays.color.sz4.spec;
+#endif
+
/* copy fog interp info */
zoomed.fog = span->fog;
@@ -190,26 +203,76 @@ zoom_span( GLcontext *ctx, GLint imgX, GLint imgY, const struct sw_span *span,
/* zoom the span horizontally */
if (format == GL_RGBA) {
- const GLchan (*rgba)[4] = (const GLchan (*)[4]) src;
- GLint i;
- for (i = 0; i < zoomedWidth; i++) {
- GLint j = unzoom_x(ctx->Pixel.ZoomX, imgX, x0 + i) - span->x;
- ASSERT(j >= 0);
- ASSERT(j < span->end);
- COPY_CHAN4(zoomed.array->rgba[i], rgba[j]);
+ if (zoomed.array->ChanType == GL_UNSIGNED_BYTE) {
+ const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) src;
+ GLint i;
+ for (i = 0; i < zoomedWidth; i++) {
+ GLint j = unzoom_x(ctx->Pixel.ZoomX, imgX, x0 + i) - span->x;
+ ASSERT(j >= 0);
+ ASSERT(j < span->end);
+ COPY_4UBV(zoomed.array->color.sz1.rgba[i], rgba[j]);
+ }
+ }
+ else if (zoomed.array->ChanType == GL_UNSIGNED_SHORT) {
+ const GLushort (*rgba)[4] = (const GLushort (*)[4]) src;
+ GLint i;
+ for (i = 0; i < zoomedWidth; i++) {
+ GLint j = unzoom_x(ctx->Pixel.ZoomX, imgX, x0 + i) - span->x;
+ ASSERT(j >= 0);
+ ASSERT(j < span->end);
+ COPY_4V(zoomed.array->color.sz2.rgba[i], rgba[j]);
+ }
+ }
+ else {
+ const GLfloat (*rgba)[4] = (const GLfloat (*)[4]) src;
+ GLint i;
+ for (i = 0; i < zoomedWidth; i++) {
+ GLint j = unzoom_x(ctx->Pixel.ZoomX, imgX, x0 + i) - span->x;
+ ASSERT(j >= 0);
+ ASSERT(j < span->end);
+ COPY_4V(zoomed.array->color.sz4.rgba[i], rgba[j]);
+ }
}
}
else if (format == GL_RGB) {
- const GLchan (*rgb)[3] = (const GLchan (*)[3]) src;
- GLint i;
- for (i = 0; i < zoomedWidth; i++) {
- GLint j = unzoom_x(ctx->Pixel.ZoomX, imgX, x0 + i) - span->x;
- ASSERT(j >= 0);
- ASSERT(j < span->end);
- zoomed.array->rgba[i][0] = rgb[j][0];
- zoomed.array->rgba[i][1] = rgb[j][1];
- zoomed.array->rgba[i][2] = rgb[j][2];
- zoomed.array->rgba[i][3] = CHAN_MAX;
+ if (zoomed.array->ChanType == GL_UNSIGNED_BYTE) {
+ const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) src;
+ GLint i;
+ for (i = 0; i < zoomedWidth; i++) {
+ GLint j = unzoom_x(ctx->Pixel.ZoomX, imgX, x0 + i) - span->x;
+ ASSERT(j >= 0);
+ ASSERT(j < span->end);
+ zoomed.array->color.sz1.rgba[i][0] = rgb[j][0];
+ zoomed.array->color.sz1.rgba[i][1] = rgb[j][1];
+ zoomed.array->color.sz1.rgba[i][2] = rgb[j][2];
+ zoomed.array->color.sz1.rgba[i][3] = 0xff;
+ }
+ }
+ else if (zoomed.array->ChanType == GL_UNSIGNED_SHORT) {
+ const GLushort (*rgb)[3] = (const GLushort (*)[3]) src;
+ GLint i;
+ for (i = 0; i < zoomedWidth; i++) {
+ GLint j = unzoom_x(ctx->Pixel.ZoomX, imgX, x0 + i) - span->x;
+ ASSERT(j >= 0);
+ ASSERT(j < span->end);
+ zoomed.array->color.sz2.rgba[i][0] = rgb[j][0];
+ zoomed.array->color.sz2.rgba[i][1] = rgb[j][1];
+ zoomed.array->color.sz2.rgba[i][2] = rgb[j][2];
+ zoomed.array->color.sz2.rgba[i][3] = 0xffff;
+ }
+ }
+ else {
+ const GLfloat (*rgb)[3] = (const GLfloat (*)[3]) src;
+ GLint i;
+ for (i = 0; i < zoomedWidth; i++) {
+ GLint j = unzoom_x(ctx->Pixel.ZoomX, imgX, x0 + i) - span->x;
+ ASSERT(j >= 0);
+ ASSERT(j < span->end);
+ zoomed.array->color.sz4.rgba[i][0] = rgb[j][0];
+ zoomed.array->color.sz4.rgba[i][1] = rgb[j][1];
+ zoomed.array->color.sz4.rgba[i][2] = rgb[j][2];
+ zoomed.array->color.sz4.rgba[i][3] = 1.0F;
+ }
}
}
else if (format == GL_COLOR_INDEX) {
@@ -241,22 +304,28 @@ zoom_span( GLcontext *ctx, GLint imgX, GLint imgY, const struct sw_span *span,
* going to call _swrast_write_zoomed_span() more than once.
* Also, clipping may change the span end value, so store it as well.
*/
- GLchan rgbaSave[MAX_WIDTH][4];
const GLint end = zoomed.end; /* save */
+ /* use specular color array for temp storage */
+ void *rgbaSave = zoomed.array->spec;
+ const GLint pixelSize =
+ (zoomed.array->ChanType == GL_UNSIGNED_BYTE) ? 4 * sizeof(GLubyte) :
+ ((zoomed.array->ChanType == GL_UNSIGNED_SHORT) ? 4 * sizeof(GLushort)
+ : 4 * sizeof(GLfloat));
if (y1 - y0 > 1) {
- MEMCPY(rgbaSave, zoomed.array->rgba, zoomed.end * 4 * sizeof(GLchan));
+ MEMCPY(rgbaSave, zoomed.array->rgba, zoomed.end * pixelSize);
}
for (zoomed.y = y0; zoomed.y < y1; zoomed.y++) {
_swrast_write_rgba_span(ctx, &zoomed);
zoomed.end = end; /* restore */
if (y1 - y0 > 1) {
/* restore the colors */
- MEMCPY(zoomed.array->rgba, rgbaSave, zoomed.end*4 * sizeof(GLchan));
+ MEMCPY(zoomed.array->rgba, rgbaSave, zoomed.end * pixelSize);
}
}
}
else if (format == GL_COLOR_INDEX) {
- GLuint indexSave[MAX_WIDTH];
+ /* use specular color array for temp storage */
+ GLuint *indexSave = (GLuint *) zoomed.array->spec;
const GLint end = zoomed.end; /* save */
if (y1 - y0 > 1) {
MEMCPY(indexSave, zoomed.array->index, zoomed.end * sizeof(GLuint));
@@ -274,26 +343,24 @@ zoom_span( GLcontext *ctx, GLint imgX, GLint imgY, const struct sw_span *span,
void
-_swrast_write_zoomed_rgba_span( GLcontext *ctx, GLint imgX, GLint imgY,
- const struct sw_span *span,
- CONST GLchan rgba[][4])
+_swrast_write_zoomed_rgba_span(GLcontext *ctx, GLint imgX, GLint imgY,
+ const SWspan *span, const GLvoid *rgba)
{
- zoom_span(ctx, imgX, imgY, span, (const GLvoid *) rgba, GL_RGBA);
+ zoom_span(ctx, imgX, imgY, span, rgba, GL_RGBA);
}
void
_swrast_write_zoomed_rgb_span(GLcontext *ctx, GLint imgX, GLint imgY,
- const struct sw_span *span,
- CONST GLchan rgb[][3])
+ const SWspan *span, const GLvoid *rgb)
{
- zoom_span(ctx, imgX, imgY, span, (const GLvoid *) rgb, GL_RGB);
+ zoom_span(ctx, imgX, imgY, span, rgb, GL_RGB);
}
void
_swrast_write_zoomed_index_span(GLcontext *ctx, GLint imgX, GLint imgY,
- const struct sw_span *span)
+ const SWspan *span)
{
zoom_span(ctx, imgX, imgY, span,
(const GLvoid *) span->array->index, GL_COLOR_INDEX);
@@ -302,7 +369,7 @@ _swrast_write_zoomed_index_span(GLcontext *ctx, GLint imgX, GLint imgY,
void
_swrast_write_zoomed_depth_span(GLcontext *ctx, GLint imgX, GLint imgY,
- const struct sw_span *span)
+ const SWspan *span)
{
zoom_span(ctx, imgX, imgY, span,
(const GLvoid *) span->array->z, GL_DEPTH_COMPONENT);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-03 05:00:13 +0000