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authorBrian Paul <brian.paul@tungstengraphics.com>2008-04-22 16:22:21 -0600
committerBrian Paul <brian.paul@tungstengraphics.com>2008-04-22 16:22:21 -0600
commitaaa43218f34fc9897b280d6cf9bc1a31bbb7dafc (patch)
tree4b895d268300d300e5fa06903647e0fa8ba2d577
parent465bc9473a0122d8f66ac1b4a69459e9bd889799 (diff)
gallium: setup an identity viewport
-rw-r--r--src/gallium/auxiliary/util/u_gen_mipmap.c35
1 files changed, 5 insertions, 30 deletions
diff --git a/src/gallium/auxiliary/util/u_gen_mipmap.c b/src/gallium/auxiliary/util/u_gen_mipmap.c
index 9822a25ca6..ff5881b979 100644
--- a/src/gallium/auxiliary/util/u_gen_mipmap.c
+++ b/src/gallium/auxiliary/util/u_gen_mipmap.c
@@ -61,6 +61,7 @@ struct gen_mipmap_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;
@@ -723,9 +724,7 @@ util_create_gen_mipmap(struct pipe_context *pipe,
ctx->sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
ctx->sampler.normalized_coords = 1;
-
-#if 0
- /* viewport */
+ /* viewport state (identity, verts are in wincoords) */
ctx->viewport.scale[0] = 1.0;
ctx->viewport.scale[1] = 1.0;
ctx->viewport.scale[2] = 1.0;
@@ -734,7 +733,6 @@ util_create_gen_mipmap(struct pipe_context *pipe,
ctx->viewport.translate[1] = 0.0;
ctx->viewport.translate[2] = 0.0;
ctx->viewport.translate[3] = 0.0;
-#endif
/* vertex shader */
{
@@ -825,26 +823,6 @@ util_destroy_gen_mipmap(struct gen_mipmap_state *ctx)
}
-#if 0
-static void
-simple_viewport(struct pipe_context *pipe, uint width, uint height)
-{
- struct pipe_viewport_state vp;
-
- vp.scale[0] = 0.5 * width;
- vp.scale[1] = -0.5 * height;
- vp.scale[2] = 1.0;
- vp.scale[3] = 1.0;
- vp.translate[0] = 0.5 * width;
- vp.translate[1] = 0.5 * height;
- vp.translate[2] = 0.0;
- vp.translate[3] = 0.0;
-
- pipe->set_viewport_state(pipe, &vp);
-}
-#endif
-
-
/**
* Generate mipmap images. It's assumed all needed texture memory is
* already allocated.
@@ -882,17 +860,16 @@ util_gen_mipmap(struct gen_mipmap_state *ctx,
cso_save_framebuffer(ctx->cso);
cso_save_fragment_shader(ctx->cso);
cso_save_vertex_shader(ctx->cso);
+ cso_save_viewport(ctx->cso);
/* bind our state */
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);
cso_set_fragment_shader_handle(ctx->cso, ctx->fs);
cso_set_vertex_shader_handle(ctx->cso, ctx->vs);
-#if 0
- cso_set_viewport(ctx->cso, &ctx->viewport);
-#endif
/* init framebuffer state */
memset(&fb, 0, sizeof(fb));
@@ -928,9 +905,6 @@ util_gen_mipmap(struct gen_mipmap_state *ctx,
ctx->sampler.lod_bias = (float) srcLevel;
cso_single_sampler(ctx->cso, 0, &ctx->sampler);
cso_single_sampler_done(ctx->cso);
-#if 0
- simple_viewport(pipe, pt->width[dstLevel], pt->height[dstLevel]);
-#endif
cso_set_sampler_textures(ctx->cso, 1, &pt);
@@ -958,4 +932,5 @@ util_gen_mipmap(struct gen_mipmap_state *ctx,
cso_restore_framebuffer(ctx->cso);
cso_restore_fragment_shader(ctx->cso);
cso_restore_vertex_shader(ctx->cso);
+ cso_restore_viewport(ctx->cso);
}