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authorBrian Paul <brian.paul@tungstengraphics.com>2001-06-12 22:05:34 +0000
committerBrian Paul <brian.paul@tungstengraphics.com>2001-06-12 22:05:34 +0000
commit5ed63e089564a3d10e65bc22902ac722f92bdd29 (patch)
tree06a2b4fb9e6f2be3528e58524d83ceac6ad7be04 /src/mesa
parentd3778fc129222895a57a480703be07a3cd74e3a5 (diff)
disable pixel transfer ops for glGetTexImage(), per the spec
Diffstat (limited to 'src/mesa')
-rw-r--r--src/mesa/main/teximage.c91
1 files changed, 6 insertions, 85 deletions
diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
index ce9a1f14aa..0dbbb187c6 100644
--- a/src/mesa/main/teximage.c
+++ b/src/mesa/main/teximage.c
@@ -1,4 +1,4 @@
-/* $Id: teximage.c,v 1.95 2001/05/24 14:47:56 brianp Exp $ */
+/* $Id: teximage.c,v 1.96 2001/06/12 22:05:34 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -1151,89 +1151,10 @@ _mesa_GetTexImage( GLenum target, GLint level, GLenum format,
return;
}
- if (ctx->NewState & _NEW_PIXEL)
- _mesa_update_state(ctx);
-
- if (is_color_format(format) &&
- ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) {
- /* convert texture image to GL_RGBA, GL_FLOAT */
- GLint width = texImage->Width;
- GLint height = texImage->Height;
- GLint depth = texImage->Depth;
- GLint img, row;
- GLfloat *tmpImage, *convImage;
- tmpImage = (GLfloat *) MALLOC(width * height * 4 * sizeof(GLfloat));
- if (!tmpImage) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
- return;
- }
- convImage = (GLfloat *) MALLOC(width * height * 4 * sizeof(GLfloat));
- if (!convImage) {
- FREE(tmpImage);
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
- return;
- }
-
- for (img = 0; img < depth; img++) {
- GLint convWidth, convHeight;
-
- /* convert texture data to GLfloat/GL_RGBA */
- for (row = 0; row < height; row++) {
- GLchan texels[1 << MAX_TEXTURE_LEVELS][4];
- GLint col;
- GLfloat *dst = tmpImage + row * width * 4;
- for (col = 0; col < width; col++) {
- (*texImage->FetchTexel)(texImage, col, row, img,
- texels[col]);
- }
- _mesa_unpack_float_color_span(ctx, width, GL_RGBA, dst,
- GL_RGBA, CHAN_TYPE, texels,
- &_mesa_native_packing,
- ctx->_ImageTransferState & IMAGE_PRE_CONVOLUTION_BITS,
- GL_FALSE);
- }
-
- convWidth = width;
- convHeight = height;
-
- /* convolve */
- if (target == GL_TEXTURE_1D) {
- if (ctx->Pixel.Convolution1DEnabled) {
- _mesa_convolve_1d_image(ctx, &convWidth, tmpImage, convImage);
- }
- }
- else {
- if (ctx->Pixel.Convolution2DEnabled) {
- _mesa_convolve_2d_image(ctx, &convWidth, &convHeight,
- tmpImage, convImage);
- }
- else if (ctx->Pixel.Separable2DEnabled) {
- _mesa_convolve_sep_image(ctx, &convWidth, &convHeight,
- tmpImage, convImage);
- }
- }
-
- /* pack convolved image */
- for (row = 0; row < convHeight; row++) {
- const GLfloat *src = convImage + row * convWidth * 4;
- GLvoid *dest = _mesa_image_address(&ctx->Pack, pixels,
- convWidth, convHeight,
- format, type, img, row, 0);
- _mesa_pack_float_rgba_span(ctx, convWidth,
- (const GLfloat(*)[4]) src,
- format, type, dest, &ctx->Pack,
- ctx->_ImageTransferState & IMAGE_POST_CONVOLUTION_BITS);
- }
- }
-
- FREE(tmpImage);
- FREE(convImage);
- }
- else {
- /* no convolution, or non-rgba image */
- GLint width = texImage->Width;
- GLint height = texImage->Height;
- GLint depth = texImage->Depth;
+ {
+ const GLint width = texImage->Width;
+ const GLint height = texImage->Height;
+ const GLint depth = texImage->Depth;
GLint img, row;
for (img = 0; img < depth; img++) {
for (row = 0; row < height; row++) {
@@ -1278,7 +1199,7 @@ _mesa_GetTexImage( GLenum target, GLint level, GLenum format,
} /* format */
} /* row */
} /* img */
- } /* convolution */
+ }
}