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mesa: handle numLevels, numSamples in _mesa_test_proxy_teximage()

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If numSamples > 0, we can compute the size of the whole mipmapped texture.
That's the case for glTexStorage(GL_PROXY_TEXTURE_x).

Also, multiply the texture size by numSamples for MSAA textures.

Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
This commit is contained in:
Brian Paul 2016-07-14 15:50:18 -06:00
parent 39183ea971
commit 9a23a177b9
1 changed files with 42 additions and 3 deletions
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45
src/mesa/main/teximage.c
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@ -40,6 +40,7 @@
#include "image.h"
#include "imports.h"
#include "macros.h"
#include "mipmap.h"
#include "multisample.h"
#include "pixelstore.h"
#include "state.h"
@ -1268,12 +1269,50 @@ _mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target,
mesa_format format, GLuint numSamples,
GLint width, GLint height, GLint depth)
{
uint64_t bytes, mbytes;
assert(numSamples > 0);
if (numLevels > 0) {
/* Compute total memory for a whole mipmap. This is the path
* taken for glTexStorage(GL_PROXY_TEXTURE_x).
*/
unsigned l;
assert(level == 0);
bytes = 0;
for (l = 0; l < numLevels; l++) {
GLint nextWidth, nextHeight, nextDepth;
bytes += _mesa_format_image_size64(format, width, height, depth);
if (_mesa_next_mipmap_level_size(target, 0, width, height, depth,
&nextWidth, &nextHeight,
&nextDepth)) {
width = nextWidth;
height = nextHeight;
depth = nextDepth;
} else {
break;
}
}
} else {
/* We just compute the size of one mipmap level. This is the path
* taken for glTexImage(GL_PROXY_TEXTURE_x).
*/
bytes = _mesa_format_image_size64(format, width, height, depth);
}
bytes *= _mesa_num_tex_faces(target);
bytes *= numSamples;
mbytes = bytes / (1024 * 1024); /* convert to MB */
/* We just check if the image size is less than MaxTextureMbytes.
* Some drivers may do more specific checks.
*/
uint64_t bytes = _mesa_format_image_size64(format, width, height, depth);
uint64_t mbytes = bytes / (1024 * 1024); /* convert to MB */
mbytes *= _mesa_num_tex_faces(target);
return mbytes <= (uint64_t) ctx->Const.MaxTextureMbytes;
}