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-rw-r--r--src/gallium/auxiliary/draw/draw_context.h2
-rw-r--r--src/gallium/auxiliary/draw/draw_pipe_aaline.c58
2 files changed, 48 insertions, 12 deletions
diff --git a/src/gallium/auxiliary/draw/draw_context.h b/src/gallium/auxiliary/draw/draw_context.h
index 68e2efb865..6171c75cb4 100644
--- a/src/gallium/auxiliary/draw/draw_context.h
+++ b/src/gallium/auxiliary/draw/draw_context.h
@@ -73,7 +73,7 @@ void draw_enable_line_stipple(struct draw_context *draw, boolean enable);
void draw_enable_point_sprites(struct draw_context *draw, boolean enable);
-void
+boolean
draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
void
diff --git a/src/gallium/auxiliary/draw/draw_pipe_aaline.c b/src/gallium/auxiliary/draw/draw_pipe_aaline.c
index b27360170a..ae1abf91c2 100644
--- a/src/gallium/auxiliary/draw/draw_pipe_aaline.c
+++ b/src/gallium/auxiliary/draw/draw_pipe_aaline.c
@@ -338,7 +338,6 @@ static boolean
generate_aaline_fs(struct aaline_stage *aaline)
{
const struct pipe_shader_state *orig_fs = &aaline->fs->state;
- //struct draw_context *draw = aaline->stage.draw;
struct pipe_shader_state aaline_fs;
struct aa_transform_context transform;
@@ -372,6 +371,8 @@ generate_aaline_fs(struct aaline_stage *aaline)
aaline->fs->aaline_fs
= aaline->driver_create_fs_state(aaline->pipe, &aaline_fs);
+ if (aaline->fs->aaline_fs == NULL)
+ return FALSE;
aaline->fs->generic_attrib = transform.maxGeneric + 1;
return TRUE;
@@ -381,7 +382,7 @@ generate_aaline_fs(struct aaline_stage *aaline)
/**
* Create the texture map we'll use for antialiasing the lines.
*/
-static void
+static boolean
aaline_create_texture(struct aaline_stage *aaline)
{
struct pipe_context *pipe = aaline->pipe;
@@ -399,6 +400,8 @@ aaline_create_texture(struct aaline_stage *aaline)
texTemp.cpp = 1;
aaline->texture = screen->texture_create(screen, &texTemp);
+ if (!aaline->texture)
+ return FALSE;
/* Fill in mipmap images.
* Basically each level is solid opaque, except for the outermost
@@ -414,6 +417,8 @@ aaline_create_texture(struct aaline_stage *aaline)
surface = screen->get_tex_surface(screen, aaline->texture, 0, level, 0);
data = pipe_surface_map(surface);
+ if (data == NULL)
+ return FALSE;
for (i = 0; i < size; i++) {
for (j = 0; j < size; j++) {
@@ -439,6 +444,7 @@ aaline_create_texture(struct aaline_stage *aaline)
pipe_surface_reference(&surface, NULL);
pipe->texture_update(pipe, aaline->texture, 0, (1 << level));
}
+ return TRUE;
}
@@ -447,7 +453,7 @@ aaline_create_texture(struct aaline_stage *aaline)
* By using a mipmapped texture, we don't have to generate a different
* texture image for each line size.
*/
-static void
+static boolean
aaline_create_sampler(struct aaline_stage *aaline)
{
struct pipe_sampler_state sampler;
@@ -465,6 +471,10 @@ aaline_create_sampler(struct aaline_stage *aaline)
sampler.max_lod = MAX_TEXTURE_LEVEL;
aaline->sampler_cso = pipe->create_sampler_state(pipe, &sampler);
+ if (aaline->sampler_cso == NULL)
+ return FALSE;
+
+ return TRUE;
}
@@ -696,9 +706,11 @@ aaline_destroy(struct draw_stage *stage)
{
struct aaline_stage *aaline = aaline_stage(stage);
- aaline->pipe->delete_sampler_state(aaline->pipe, aaline->sampler_cso);
+ if (aaline->sampler_cso)
+ aaline->pipe->delete_sampler_state(aaline->pipe, aaline->sampler_cso);
- pipe_texture_release(&aaline->texture);
+ if (aaline->texture)
+ pipe_texture_release(&aaline->texture);
draw_free_temp_verts( stage );
@@ -710,8 +722,11 @@ static struct aaline_stage *
draw_aaline_stage(struct draw_context *draw)
{
struct aaline_stage *aaline = CALLOC_STRUCT(aaline_stage);
+ if (aaline == NULL)
+ return NULL;
- draw_alloc_temp_verts( &aaline->stage, 8 );
+ if (draw_alloc_temp_verts( &aaline->stage, 8 ))
+ goto fail;
aaline->stage.draw = draw;
aaline->stage.next = NULL;
@@ -723,6 +738,12 @@ draw_aaline_stage(struct draw_context *draw)
aaline->stage.destroy = aaline_destroy;
return aaline;
+
+ fail:
+ if (aaline)
+ aaline_destroy(&aaline->stage);
+
+ return NULL;
}
@@ -816,7 +837,7 @@ aaline_set_sampler_textures(struct pipe_context *pipe,
* into the draw module's pipeline. This will not be used if the
* hardware has native support for AA lines.
*/
-void
+boolean
draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe)
{
struct aaline_stage *aaline;
@@ -827,14 +848,17 @@ draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe)
* Create / install AA line drawing / prim stage
*/
aaline = draw_aaline_stage( draw );
- assert(aaline);
- draw->pipeline.aaline = &aaline->stage;
+ if (!aaline)
+ goto fail;
aaline->pipe = pipe;
/* create special texture, sampler state */
- aaline_create_texture(aaline);
- aaline_create_sampler(aaline);
+ if (!aaline_create_texture(aaline))
+ goto fail;
+
+ if (!aaline_create_sampler(aaline))
+ goto fail;
/* save original driver functions */
aaline->driver_create_fs_state = pipe->create_fs_state;
@@ -851,4 +875,16 @@ draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe)
pipe->bind_sampler_states = aaline_bind_sampler_states;
pipe->set_sampler_textures = aaline_set_sampler_textures;
+
+ /* Install once everything is known to be OK:
+ */
+ draw->pipeline.aaline = &aaline->stage;
+
+ return TRUE;
+
+ fail:
+ if (aaline)
+ aaline->stage.destroy( &aaline->stage );
+
+ return FALSE;
}