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-rw-r--r--src/mesa/state_tracker/st_cb_bitmap.c94
-rw-r--r--src/mesa/state_tracker/st_context.h2
2 files changed, 60 insertions, 36 deletions
diff --git a/src/mesa/state_tracker/st_cb_bitmap.c b/src/mesa/state_tracker/st_cb_bitmap.c
index ec56b25f7ce..0cc910a67fa 100644
--- a/src/mesa/state_tracker/st_cb_bitmap.c
+++ b/src/mesa/state_tracker/st_cb_bitmap.c
@@ -350,16 +350,21 @@ setup_bitmap_vertex_data(struct st_context *st,
{
struct pipe_context *pipe = st->pipe;
const struct gl_framebuffer *fb = st->ctx->DrawBuffer;
- const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP);
+ const GLfloat fb_width = fb->Width;
+ const GLfloat fb_height = fb->Height;
const GLfloat x0 = x;
const GLfloat x1 = x + width;
- const GLfloat y0 = invert ? ((int) fb->Height - y - height) : y;
- const GLfloat y1 = invert ? (y0 + height) : y + height;
+ const GLfloat y0 = y;
+ const GLfloat y1 = y + height;
const GLfloat bias = st->bitmap_texcoord_bias;
const GLfloat xBias = bias / (x1-x0);
const GLfloat yBias = bias / (y1-y0);
const GLfloat sLeft = 0.0 + xBias, sRight = 1.0 + xBias;
- const GLfloat tTop = 1.0 - yBias, tBot = 1.0 - tTop - yBias;
+ const GLfloat tTop = yBias, tBot = 1.0 - tTop - yBias;
+ const GLfloat clip_x0 = x0 / fb_width * 2.0 - 1.0;
+ const GLfloat clip_y0 = y0 / fb_height * 2.0 - 1.0;
+ const GLfloat clip_x1 = x1 / fb_width * 2.0 - 1.0;
+ const GLfloat clip_y1 = y1 / fb_height * 2.0 - 1.0;
GLuint i;
void *buf;
@@ -369,24 +374,26 @@ setup_bitmap_vertex_data(struct st_context *st,
sizeof(st->bitmap.vertices));
}
- /* positions, texcoords */
- st->bitmap.vertices[0][0][0] = x0;
- st->bitmap.vertices[0][0][1] = y0;
+ /* Positions are in clip coords since we need to do clipping in case
+ * the bitmap quad goes beyond the window bounds.
+ */
+ st->bitmap.vertices[0][0][0] = clip_x0;
+ st->bitmap.vertices[0][0][1] = clip_y0;
st->bitmap.vertices[0][2][0] = sLeft;
st->bitmap.vertices[0][2][1] = tTop;
- st->bitmap.vertices[1][0][0] = x1;
- st->bitmap.vertices[1][0][1] = y0;
+ st->bitmap.vertices[1][0][0] = clip_x1;
+ st->bitmap.vertices[1][0][1] = clip_y0;
st->bitmap.vertices[1][2][0] = sRight;
st->bitmap.vertices[1][2][1] = tTop;
- st->bitmap.vertices[2][0][0] = x1;
- st->bitmap.vertices[2][0][1] = y1;
+ st->bitmap.vertices[2][0][0] = clip_x1;
+ st->bitmap.vertices[2][0][1] = clip_y1;
st->bitmap.vertices[2][2][0] = sRight;
st->bitmap.vertices[2][2][1] = tBot;
- st->bitmap.vertices[3][0][0] = x0;
- st->bitmap.vertices[3][0][1] = y1;
+ st->bitmap.vertices[3][0][0] = clip_x0;
+ st->bitmap.vertices[3][0][1] = clip_y1;
st->bitmap.vertices[3][2][0] = sLeft;
st->bitmap.vertices[3][2][1] = tBot;
@@ -437,17 +444,11 @@ draw_bitmap_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z,
cso_save_rasterizer(cso);
cso_save_samplers(cso);
+ cso_save_viewport(cso);
/* rasterizer state: just scissor */
- {
- struct pipe_rasterizer_state rasterizer;
- memset(&rasterizer, 0, sizeof(rasterizer));
- if (ctx->Scissor.Enabled)
- rasterizer.scissor = 1;
- rasterizer.bypass_clipping = 1;
-
- cso_set_rasterizer(cso, &rasterizer);
- }
+ st->bitmap.rasterizer.scissor = ctx->Scissor.Enabled;
+ cso_set_rasterizer(cso, &st->bitmap.rasterizer);
/* fragment shader state: TEX lookup program */
pipe->bind_fs_state(pipe, stfp->driver_shader);
@@ -456,21 +457,26 @@ draw_bitmap_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z,
pipe->bind_vs_state(pipe, st->bitmap.vs);
/* sampler / texture state */
+ cso_single_sampler(cso, 0, &st->bitmap.sampler);
+ cso_single_sampler_done(cso);
+ pipe->set_sampler_textures(pipe, 1, &pt);
+
+ /* viewport state: viewport matching window dims */
{
- struct pipe_sampler_state sampler;
- memset(&sampler, 0, sizeof(sampler));
- sampler.wrap_s = PIPE_TEX_WRAP_CLAMP;
- sampler.wrap_t = PIPE_TEX_WRAP_CLAMP;
- sampler.wrap_r = PIPE_TEX_WRAP_CLAMP;
- sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
- sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
- sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
- sampler.normalized_coords = 1;
-
- cso_single_sampler(cso, 0, &sampler);
- cso_single_sampler_done(cso);
-
- pipe->set_sampler_textures(pipe, 1, &pt);
+ const struct gl_framebuffer *fb = st->ctx->DrawBuffer;
+ const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP);
+ const float width = fb->Width;
+ const float height = fb->Height;
+ struct pipe_viewport_state vp;
+ vp.scale[0] = 0.5 * width;
+ vp.scale[1] = height * (invert ? -0.5 : 0.5);
+ 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;
+ cso_set_viewport(cso, &vp);
}
/* draw textured quad */
@@ -487,6 +493,7 @@ draw_bitmap_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z,
/* restore state */
cso_restore_rasterizer(cso);
cso_restore_samplers(cso);
+ cso_restore_viewport(cso);
/* shaders don't go through cso yet */
pipe->bind_fs_state(pipe, st->fp->driver_shader);
pipe->bind_vs_state(pipe, st->vp->driver_shader);
@@ -742,6 +749,21 @@ st_init_bitmap_functions(struct dd_function_table *functions)
void
st_init_bitmap(struct st_context *st)
{
+ struct pipe_sampler_state *sampler = &st->bitmap.sampler;
+
+ /* init sampler state once */
+ memset(sampler, 0, sizeof(*sampler));
+ sampler->wrap_s = PIPE_TEX_WRAP_CLAMP;
+ sampler->wrap_t = PIPE_TEX_WRAP_CLAMP;
+ sampler->wrap_r = PIPE_TEX_WRAP_CLAMP;
+ sampler->min_img_filter = PIPE_TEX_FILTER_NEAREST;
+ sampler->min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
+ sampler->mag_img_filter = PIPE_TEX_FILTER_NEAREST;
+ sampler->normalized_coords = 1;
+
+ /* init scissor state once */
+ memset(&st->bitmap.rasterizer, 0, sizeof(st->bitmap.rasterizer));
+
init_bitmap_cache(st);
}
diff --git a/src/mesa/state_tracker/st_context.h b/src/mesa/state_tracker/st_context.h
index 85e3d47e1aa..44705bc89a3 100644
--- a/src/mesa/state_tracker/st_context.h
+++ b/src/mesa/state_tracker/st_context.h
@@ -148,6 +148,8 @@ struct st_context
struct st_fragment_program *program; /**< bitmap tex/kil program */
GLuint user_prog_sn; /**< user fragment program serial no. */
struct st_fragment_program *combined_prog;
+ struct pipe_rasterizer_state rasterizer;
+ struct pipe_sampler_state sampler;
struct pipe_shader_state vert_shader;
void *vs;
float vertices[4][3][4]; /**< vertex pos + color + texcoord */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 06:22:38 +0000