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gallium: setup an identity viewport

This commit is contained in:
Brian Paul 2008-04-22 16:22:21 -06:00
parent 465bc9473a
commit aaa43218f3
1 changed files with 5 additions and 30 deletions
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35
src/gallium/auxiliary/util/u_gen_mipmap.c
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@ -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);
}