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gallium: fix out of tex memory crashes

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This commit is contained in:
Brian Paul
2008-05-08 19:19:52 -06:00
parent 044d583ba1
commit 2a39dbe736
2 changed files with 13 additions and 3 deletions
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11
src/mesa/state_tracker/st_cb_texture.c
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@@ -645,7 +645,8 @@ st_TexImage(GLcontext * ctx,
if (stImage->pt) { if (stImage->pt) {
texImage->Data = st_texture_image_map(ctx->st, stImage, 0, texImage->Data = st_texture_image_map(ctx->st, stImage, 0,
PIPE_BUFFER_USAGE_CPU_WRITE); PIPE_BUFFER_USAGE_CPU_WRITE);
dstRowStride = stImage->surface->pitch * stImage->surface->cpp; if (stImage->surface)
dstRowStride = stImage->surface->pitch * stImage->surface->cpp;
} }
else { else {
/* Allocate regular memory and store the image there temporarily. */ /* Allocate regular memory and store the image there temporarily. */
@@ -663,6 +664,11 @@ st_TexImage(GLcontext * ctx,
texImage->Data = malloc(sizeInBytes); texImage->Data = malloc(sizeInBytes);
} }
if (!texImage->Data) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
return;
}
DBG("Upload image %dx%dx%d row_len %x pitch %x\n", DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
width, height, depth, width * texelBytes, dstRowStride); width, height, depth, width * texelBytes, dstRowStride);
@@ -906,7 +912,8 @@ st_TexSubimage(GLcontext * ctx,
if (stImage->pt) { if (stImage->pt) {
texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset, texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset,
PIPE_BUFFER_USAGE_CPU_WRITE); PIPE_BUFFER_USAGE_CPU_WRITE);
dstRowStride = stImage->surface->pitch * stImage->surface->cpp; if (stImage->surface)
dstRowStride = stImage->surface->pitch * stImage->surface->cpp;
} }
if (!texImage->Data) { if (!texImage->Data) {

5
src/mesa/state_tracker/st_texture.c
View File

@@ -197,7 +197,10 @@ st_texture_image_map(struct st_context *st, struct st_texture_image *stImage,
stImage->level, zoffset, stImage->level, zoffset,
flags); flags);
return screen->surface_map(screen, stImage->surface, flags); if (stImage->surface)
return screen->surface_map(screen, stImage->surface, flags);
else
return NULL;
} }