From a04f8c361211dda6a27c5577070492e17a2f4743 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Thu, 20 Oct 2011 23:14:36 +0200 Subject: [PATCH] r300g: don't return NULL in resource_from_handle if the resource is too small The DDX may allocate a buffer with a too small size. Instead of failing, let's pretend everything's alright. Such bugs should be fixed in the DDX, of course. NOTE: This is a candidate for the stable branches. --- src/gallium/drivers/r300/r300_texture.c | 20 +++++--------------- src/gallium/drivers/r300/r300_texture.h | 6 +++--- src/gallium/drivers/r300/r300_texture_desc.c | 20 +++++++++++--------- src/gallium/drivers/r300/r300_texture_desc.h | 6 +++--- 4 files changed, 22 insertions(+), 30 deletions(-) diff --git a/src/gallium/drivers/r300/r300_texture.c b/src/gallium/drivers/r300/r300_texture.c index 34860c9d72b..fa09410c6a5 100644 --- a/src/gallium/drivers/r300/r300_texture.c +++ b/src/gallium/drivers/r300/r300_texture.c @@ -812,9 +812,9 @@ static void r300_texture_setup_fb_state(struct r300_surface *surf) } } -boolean r300_resource_set_properties(struct pipe_screen *screen, - struct pipe_resource *tex, - const struct pipe_resource *new_properties) +void r300_resource_set_properties(struct pipe_screen *screen, + struct pipe_resource *tex, + const struct pipe_resource *new_properties) { struct r300_screen *rscreen = r300_screen(screen); struct r300_resource *res = r300_resource(tex); @@ -824,13 +824,8 @@ boolean r300_resource_set_properties(struct pipe_screen *screen, util_format_short_name(tex->format), util_format_short_name(new_properties->format)); - if (!r300_texture_desc_init(rscreen, res, new_properties)) { - fprintf(stderr, "r300: ERROR: Cannot set texture properties.\n"); - return FALSE; - } + r300_texture_desc_init(rscreen, res, new_properties); r300_texture_setup_format_state(rscreen, res, 0, &res->tx_format); - - return TRUE; } static void r300_texture_destroy(struct pipe_screen *screen, @@ -897,12 +892,7 @@ r300_texture_create_object(struct r300_screen *rscreen, tex->tex.stride_in_bytes_override = stride_in_bytes_override; tex->buf = buffer; - if (!r300_resource_set_properties(&rscreen->screen, &tex->b.b.b, base)) { - if (buffer) - pb_reference(&buffer, NULL); - FREE(tex); - return NULL; - } + r300_resource_set_properties(&rscreen->screen, &tex->b.b.b, base); /* Create the backing buffer if needed. */ if (!tex->buf) { diff --git a/src/gallium/drivers/r300/r300_texture.h b/src/gallium/drivers/r300/r300_texture.h index 0da07235a69..f87d2842a8b 100644 --- a/src/gallium/drivers/r300/r300_texture.h +++ b/src/gallium/drivers/r300/r300_texture.h @@ -46,9 +46,9 @@ uint32_t r300_translate_texformat(enum pipe_format format, uint32_t r500_tx_format_msb_bit(enum pipe_format format); -boolean r300_resource_set_properties(struct pipe_screen *screen, - struct pipe_resource *tex, - const struct pipe_resource *new_properties); +void r300_resource_set_properties(struct pipe_screen *screen, + struct pipe_resource *tex, + const struct pipe_resource *new_properties); boolean r300_is_colorbuffer_format_supported(enum pipe_format format); diff --git a/src/gallium/drivers/r300/r300_texture_desc.c b/src/gallium/drivers/r300/r300_texture_desc.c index 55e363b892c..926bb0b10de 100644 --- a/src/gallium/drivers/r300/r300_texture_desc.c +++ b/src/gallium/drivers/r300/r300_texture_desc.c @@ -473,9 +473,9 @@ static void r300_tex_print_info(struct r300_resource *tex, util_format_short_name(tex->b.b.b.format)); } -boolean r300_texture_desc_init(struct r300_screen *rscreen, - struct r300_resource *tex, - const struct pipe_resource *base) +void r300_texture_desc_init(struct r300_screen *rscreen, + struct r300_resource *tex, + const struct pipe_resource *base) { tex->b.b.b.target = base->target; tex->b.b.b.format = base->format; @@ -514,11 +514,15 @@ boolean r300_texture_desc_init(struct r300_screen *rscreen, /* Make sure the buffer we got is large enough. */ if (tex->tex.size_in_bytes > tex->buf->size) { - fprintf(stderr, "r300: texture_desc_init: The buffer is not " - "large enough. Got: %i, Need: %i, Info:\n", - tex->buf->size, tex->tex.size_in_bytes); + fprintf(stderr, + "r300: I got a pre-allocated buffer to use it as a texture " + "storage, but the buffer is too small. I'll use the buffer " + "anyway, because I can't crash here, but it's dangerous. " + "This can be a DDX bug. Got: %iB, Need: %iB, Info:\n", + tex->buf->size, tex->tex.size_in_bytes); r300_tex_print_info(tex, "texture_desc_init"); - return FALSE; + /* Ooops, what now. Apps will break if we fail this, + * so just pretend everything's okay. */ } } @@ -526,8 +530,6 @@ boolean r300_texture_desc_init(struct r300_screen *rscreen, if (SCREEN_DBG_ON(rscreen, DBG_TEX)) r300_tex_print_info(tex, "texture_desc_init"); - - return TRUE; } unsigned r300_texture_get_offset(struct r300_resource *tex, diff --git a/src/gallium/drivers/r300/r300_texture_desc.h b/src/gallium/drivers/r300/r300_texture_desc.h index a84d6fae0ea..591592dfb04 100644 --- a/src/gallium/drivers/r300/r300_texture_desc.h +++ b/src/gallium/drivers/r300/r300_texture_desc.h @@ -43,9 +43,9 @@ unsigned r300_get_pixel_alignment(enum pipe_format format, enum radeon_bo_layout macrotile, enum r300_dim dim, boolean is_rs690); -boolean r300_texture_desc_init(struct r300_screen *rscreen, - struct r300_resource *tex, - const struct pipe_resource *base); +void r300_texture_desc_init(struct r300_screen *rscreen, + struct r300_resource *tex, + const struct pipe_resource *base); unsigned r300_texture_get_offset(struct r300_resource *tex, unsigned level, unsigned layer); -- 2.30.2