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path: root/src/gallium/auxiliary/util/u_blit.c
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Diffstat (limited to 'src/gallium/auxiliary/util/u_blit.c')
-rw-r--r--src/gallium/auxiliary/util/u_blit.c60
1 files changed, 54 insertions, 6 deletions
diff --git a/src/gallium/auxiliary/util/u_blit.c b/src/gallium/auxiliary/util/u_blit.c
index f0bc58a558..4d0737ccd3 100644
--- a/src/gallium/auxiliary/util/u_blit.c
+++ b/src/gallium/auxiliary/util/u_blit.c
@@ -62,6 +62,8 @@ struct blit_state
struct pipe_rasterizer_state rasterizer;
struct pipe_sampler_state sampler;
struct pipe_viewport_state viewport;
+ struct pipe_clip_state clip;
+ struct pipe_vertex_element velem[2];
void *vs;
void *fs[TGSI_WRITEMASK_XYZW + 1];
@@ -101,7 +103,6 @@ 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_vs_clip_and_viewport = 1;
ctx->rasterizer.gl_rasterization_rules = 1;
/* samplers */
@@ -114,6 +115,14 @@ util_create_blit(struct pipe_context *pipe, struct cso_context *cso)
ctx->sampler.mag_img_filter = 0; /* set later */
ctx->sampler.normalized_coords = 1;
+ /* vertex elements state */
+ memset(&ctx->velem[0], 0, sizeof(ctx->velem[0]) * 2);
+ for (i = 0; i < 2; i++) {
+ ctx->velem[i].src_offset = i * 4 * sizeof(float);
+ ctx->velem[i].instance_divisor = 0;
+ ctx->velem[i].vertex_buffer_index = 0;
+ ctx->velem[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
+ }
/* vertex shader - still required to provide the linkage between
* fragment shader input semantics and vertex_element/buffers.
@@ -266,7 +275,6 @@ regions_overlap(int srcX0, int srcY0,
* \param writemask controls which channels in the dest surface are sourced
* from the src surface. Disabled channels are sourced
* from (0,0,0,1).
- * XXX what about clipping???
* XXX need some control over blitting Z and/or stencil.
*/
void
@@ -407,14 +415,19 @@ util_blit_pixels_writemask(struct blit_state *ctx,
cso_save_rasterizer(ctx->cso);
cso_save_samplers(ctx->cso);
cso_save_sampler_textures(ctx->cso);
+ cso_save_viewport(ctx->cso);
cso_save_framebuffer(ctx->cso);
cso_save_fragment_shader(ctx->cso);
cso_save_vertex_shader(ctx->cso);
+ cso_save_clip(ctx->cso);
+ cso_save_vertex_elements(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_clip(ctx->cso, &ctx->clip);
+ cso_set_vertex_elements(ctx->cso, 2, ctx->velem);
/* sampler */
ctx->sampler.min_img_filter = filter;
@@ -422,6 +435,17 @@ util_blit_pixels_writemask(struct blit_state *ctx,
cso_single_sampler(ctx->cso, 0, &ctx->sampler);
cso_single_sampler_done(ctx->cso);
+ /* viewport */
+ ctx->viewport.scale[0] = 0.5f * dst->width;
+ ctx->viewport.scale[1] = 0.5f * dst->height;
+ ctx->viewport.scale[2] = 0.5f;
+ ctx->viewport.scale[3] = 1.0f;
+ ctx->viewport.translate[0] = 0.5f * dst->width;
+ ctx->viewport.translate[1] = 0.5f * dst->height;
+ ctx->viewport.translate[2] = 0.5f;
+ ctx->viewport.translate[3] = 0.0f;
+ cso_set_viewport(ctx->cso, &ctx->viewport);
+
/* texture */
cso_set_sampler_textures(ctx->cso, 1, &tex);
@@ -444,8 +468,10 @@ util_blit_pixels_writemask(struct blit_state *ctx,
/* draw quad */
offset = setup_vertex_data_tex(ctx,
- (float) dstX0, (float) dstY0,
- (float) dstX1, (float) dstY1,
+ (float) dstX0 / dst->width * 2.0f - 1.0f,
+ (float) dstY0 / dst->height * 2.0f - 1.0f,
+ (float) dstX1 / dst->width * 2.0f - 1.0f,
+ (float) dstY1 / dst->height * 2.0f - 1.0f,
s0, t0,
s1, t1,
z);
@@ -461,9 +487,12 @@ util_blit_pixels_writemask(struct blit_state *ctx,
cso_restore_rasterizer(ctx->cso);
cso_restore_samplers(ctx->cso);
cso_restore_sampler_textures(ctx->cso);
+ cso_restore_viewport(ctx->cso);
cso_restore_framebuffer(ctx->cso);
cso_restore_fragment_shader(ctx->cso);
cso_restore_vertex_shader(ctx->cso);
+ cso_restore_clip(ctx->cso);
+ cso_restore_vertex_elements(ctx->cso);
pipe_texture_reference(&tex, NULL);
}
@@ -547,11 +576,15 @@ util_blit_pixels_tex(struct blit_state *ctx,
cso_save_framebuffer(ctx->cso);
cso_save_fragment_shader(ctx->cso);
cso_save_vertex_shader(ctx->cso);
+ cso_save_clip(ctx->cso);
+ cso_save_vertex_elements(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_clip(ctx->cso, &ctx->clip);
+ cso_set_vertex_elements(ctx->cso, 2, ctx->velem);
/* sampler */
ctx->sampler.min_img_filter = filter;
@@ -559,6 +592,17 @@ util_blit_pixels_tex(struct blit_state *ctx,
cso_single_sampler(ctx->cso, 0, &ctx->sampler);
cso_single_sampler_done(ctx->cso);
+ /* viewport */
+ ctx->viewport.scale[0] = 0.5f * dst->width;
+ ctx->viewport.scale[1] = 0.5f * dst->height;
+ ctx->viewport.scale[2] = 0.5f;
+ ctx->viewport.scale[3] = 1.0f;
+ ctx->viewport.translate[0] = 0.5f * dst->width;
+ ctx->viewport.translate[1] = 0.5f * dst->height;
+ ctx->viewport.translate[2] = 0.5f;
+ ctx->viewport.translate[3] = 0.0f;
+ cso_set_viewport(ctx->cso, &ctx->viewport);
+
/* texture */
cso_set_sampler_textures(ctx->cso, 1, &tex);
@@ -576,8 +620,10 @@ util_blit_pixels_tex(struct blit_state *ctx,
/* draw quad */
offset = setup_vertex_data_tex(ctx,
- (float) dstX0, (float) dstY0,
- (float) dstX1, (float) dstY1,
+ (float) dstX0 / dst->width * 2.0f - 1.0f,
+ (float) dstY0 / dst->height * 2.0f - 1.0f,
+ (float) dstX1 / dst->width * 2.0f - 1.0f,
+ (float) dstY1 / dst->height * 2.0f - 1.0f,
s0, t0, s1, t1,
z);
@@ -596,4 +642,6 @@ util_blit_pixels_tex(struct blit_state *ctx,
cso_restore_framebuffer(ctx->cso);
cso_restore_fragment_shader(ctx->cso);
cso_restore_vertex_shader(ctx->cso);
+ cso_restore_clip(ctx->cso);
+ cso_restore_vertex_elements(ctx->cso);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-27 10:18:29 +0000