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gallium: setup an identity viewport

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This fixes broken blits.
This commit is contained in:
Brian Paul 2008-04-22 16:29:48 -06:00
parent 0939a986a8
commit 22cbf6a704
1 changed files with 6 additions and 4 deletions
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10
src/gallium/auxiliary/util/u_blit.c
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@ -57,6 +57,7 @@ struct blit_state
struct pipe_depth_stencil_alpha_state depthstencil;
struct pipe_rasterizer_state rasterizer;
struct pipe_sampler_state sampler;
struct pipe_viewport_state viewport;
struct pipe_shader_state vert_shader;
struct pipe_shader_state frag_shader;
@ -100,7 +101,7 @@ util_create_blit(struct pipe_context *pipe, struct cso_context *cso)
memset(&ctx->rasterizer, 0, sizeof(ctx->rasterizer));
ctx->rasterizer.front_winding = PIPE_WINDING_CW;
ctx->rasterizer.cull_mode = PIPE_WINDING_NONE;
ctx->rasterizer.bypass_clipping = 1; /* bypasses viewport too */
ctx->rasterizer.bypass_clipping = 1;
/*ctx->rasterizer.bypass_vs = 1;*/
/* samplers */
@ -113,8 +114,7 @@ util_create_blit(struct pipe_context *pipe, struct cso_context *cso)
ctx->sampler.mag_img_filter = 0; /* set later */
ctx->sampler.normalized_coords = 1;
#if 0
/* viewport */
/* viewport (identity, we setup vertices in wincoords) */
ctx->viewport.scale[0] = 1.0;
ctx->viewport.scale[1] = 1.0;
ctx->viewport.scale[2] = 1.0;
@ -123,7 +123,6 @@ util_create_blit(struct pipe_context *pipe, struct cso_context *cso)
ctx->viewport.translate[1] = 0.0;
ctx->viewport.translate[2] = 0.0;
ctx->viewport.translate[3] = 0.0;
#endif
/* vertex shader */
{
@ -302,11 +301,13 @@ util_blit_pixels(struct blit_state *ctx,
cso_save_framebuffer(ctx->cso);
cso_save_fragment_shader(ctx->cso);
cso_save_vertex_shader(ctx->cso);
cso_save_viewport(ctx->cso);
/* set misc state we care about */
cso_set_blend(ctx->cso, &ctx->blend);
cso_set_depth_stencil_alpha(ctx->cso, &ctx->depthstencil);
cso_set_rasterizer(ctx->cso, &ctx->rasterizer);
cso_set_viewport(ctx->cso, &ctx->viewport);
/* sampler */
ctx->sampler.min_img_filter = filter;
@ -348,6 +349,7 @@ util_blit_pixels(struct blit_state *ctx,
cso_restore_framebuffer(ctx->cso);
cso_restore_fragment_shader(ctx->cso);
cso_restore_vertex_shader(ctx->cso);
cso_restore_viewport(ctx->cso);
/* free the texture */
pipe_surface_reference(&texSurf, NULL);