#include "st_cb_bitmap.h"
#include "st_cb_clear.h"
#include "st_cb_fbo.h"
+#include "st_draw.h"
#include "st_format.h"
#include "st_program.h"
#include "util/u_framebuffer.h"
#include "util/u_inlines.h"
#include "util/u_simple_shaders.h"
-#include "util/u_upload_mgr.h"
#include "cso_cache/cso_context.h"
}
-/**
- * Draw a screen-aligned quadrilateral.
- * Coords are clip coords with y=0=bottom.
- */
-static void
-draw_quad(struct st_context *st,
- float x0, float y0, float x1, float y1, GLfloat z,
- unsigned num_instances,
- const union pipe_color_union *color)
-{
- struct cso_context *cso = st->cso_context;
- struct pipe_vertex_buffer vb = {0};
- struct st_util_vertex *verts;
-
- vb.stride = sizeof(struct st_util_vertex);
-
- u_upload_alloc(st->uploader, 0, 4 * sizeof(struct st_util_vertex), 4,
- &vb.buffer_offset, &vb.buffer, (void **) &verts);
- if (!vb.buffer) {
- return;
- }
-
- /* Convert Z from [0,1] to [-1,1] range */
- z = z * 2.0f - 1.0f;
-
- /* Note: if we're only clearing depth/stencil we still setup vertices
- * with color, but they'll be ignored.
- */
- verts[0].x = x0;
- verts[0].y = y0;
- verts[0].z = z;
- verts[0].r = color->f[0];
- verts[0].g = color->f[1];
- verts[0].b = color->f[2];
- verts[0].a = color->f[3];
-
- verts[1].x = x1;
- verts[1].y = y0;
- verts[1].z = z;
- verts[1].r = color->f[0];
- verts[1].g = color->f[1];
- verts[1].b = color->f[2];
- verts[1].a = color->f[3];
-
- verts[2].x = x1;
- verts[2].y = y1;
- verts[2].z = z;
- verts[2].r = color->f[0];
- verts[2].g = color->f[1];
- verts[2].b = color->f[2];
- verts[2].a = color->f[3];
-
- verts[3].x = x0;
- verts[3].y = y1;
- verts[3].z = z;
- verts[3].r = color->f[0];
- verts[3].g = color->f[1];
- verts[3].b = color->f[2];
- verts[3].a = color->f[3];
-
- u_upload_unmap(st->uploader);
-
- /* draw */
- cso_set_vertex_buffers(cso, cso_get_aux_vertex_buffer_slot(cso), 1, &vb);
- cso_draw_arrays_instanced(cso, PIPE_PRIM_TRIANGLE_FAN, 0, 4,
- 0, num_instances);
- pipe_resource_reference(&vb.buffer, NULL);
-}
-
-
-
/**
* Do glClear by drawing a quadrilateral.
* The vertices of the quad will be computed from the
clear_with_quad(struct gl_context *ctx, unsigned clear_buffers)
{
struct st_context *st = st_context(ctx);
+ struct cso_context *cso = st->cso_context;
const struct gl_framebuffer *fb = ctx->DrawBuffer;
const GLfloat fb_width = (GLfloat) fb->Width;
const GLfloat fb_height = (GLfloat) fb->Height;
x1, y1);
*/
- cso_save_blend(st->cso_context);
- cso_save_stencil_ref(st->cso_context);
- cso_save_depth_stencil_alpha(st->cso_context);
- cso_save_rasterizer(st->cso_context);
- cso_save_sample_mask(st->cso_context);
- cso_save_min_samples(st->cso_context);
- cso_save_viewport(st->cso_context);
- cso_save_fragment_shader(st->cso_context);
- cso_save_stream_outputs(st->cso_context);
- cso_save_vertex_shader(st->cso_context);
- cso_save_tessctrl_shader(st->cso_context);
- cso_save_tesseval_shader(st->cso_context);
- cso_save_geometry_shader(st->cso_context);
- cso_save_vertex_elements(st->cso_context);
- cso_save_aux_vertex_buffer_slot(st->cso_context);
+ cso_save_state(cso, (CSO_BIT_BLEND |
+ CSO_BIT_STENCIL_REF |
+ CSO_BIT_DEPTH_STENCIL_ALPHA |
+ CSO_BIT_RASTERIZER |
+ CSO_BIT_SAMPLE_MASK |
+ CSO_BIT_MIN_SAMPLES |
+ CSO_BIT_VIEWPORT |
+ CSO_BIT_STREAM_OUTPUTS |
+ CSO_BIT_VERTEX_ELEMENTS |
+ CSO_BIT_AUX_VERTEX_BUFFER_SLOT |
+ CSO_BITS_ALL_SHADERS));
/* blend state: RGBA masking */
{
blend.rt[i].colormask |= PIPE_MASK_A;
}
- if (st->ctx->Color.DitherFlag)
+ if (ctx->Color.DitherFlag)
blend.dither = 1;
}
- cso_set_blend(st->cso_context, &blend);
+ cso_set_blend(cso, &blend);
}
/* depth_stencil state: always pass/set to ref value */
depth_stencil.stencil[0].valuemask = 0xff;
depth_stencil.stencil[0].writemask = ctx->Stencil.WriteMask[0] & 0xff;
stencil_ref.ref_value[0] = ctx->Stencil.Clear;
- cso_set_stencil_ref(st->cso_context, &stencil_ref);
+ cso_set_stencil_ref(cso, &stencil_ref);
}
- cso_set_depth_stencil_alpha(st->cso_context, &depth_stencil);
+ cso_set_depth_stencil_alpha(cso, &depth_stencil);
}
- cso_set_vertex_elements(st->cso_context, 2, st->util_velems);
- cso_set_stream_outputs(st->cso_context, 0, NULL, NULL);
- cso_set_sample_mask(st->cso_context, ~0);
- cso_set_min_samples(st->cso_context, 1);
- cso_set_rasterizer(st->cso_context, &st->clear.raster);
+ cso_set_vertex_elements(cso, 2, st->util_velems);
+ cso_set_stream_outputs(cso, 0, NULL, NULL);
+ cso_set_sample_mask(cso, ~0);
+ cso_set_min_samples(cso, 1);
+ cso_set_rasterizer(cso, &st->clear.raster);
/* viewport state: viewport matching window dims */
- {
- const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP);
- struct pipe_viewport_state vp;
- vp.scale[0] = 0.5f * fb_width;
- vp.scale[1] = fb_height * (invert ? -0.5f : 0.5f);
- vp.scale[2] = 0.5f;
- vp.translate[0] = 0.5f * fb_width;
- vp.translate[1] = 0.5f * fb_height;
- vp.translate[2] = 0.5f;
- cso_set_viewport(st->cso_context, &vp);
- }
+ cso_set_viewport_dims(st->cso_context, fb_width, fb_height,
+ st_fb_orientation(fb) == Y_0_TOP);
set_fragment_shader(st);
- cso_set_tessctrl_shader_handle(st->cso_context, NULL);
- cso_set_tesseval_shader_handle(st->cso_context, NULL);
+ cso_set_tessctrl_shader_handle(cso, NULL);
+ cso_set_tesseval_shader_handle(cso, NULL);
if (num_layers > 1)
set_vertex_shader_layered(st);
else
set_vertex_shader(st);
- /* We can't translate the clear color to the colorbuffer format,
+ /* draw quad matching scissor rect.
+ *
+ * Note: if we're only clearing depth/stencil we still setup vertices
+ * with color, but they'll be ignored.
+ *
+ * We can't translate the clear color to the colorbuffer format,
* because different colorbuffers may have different formats.
*/
-
- /* draw quad matching scissor rect */
- draw_quad(st, x0, y0, x1, y1, (GLfloat) ctx->Depth.Clear, num_layers,
- (union pipe_color_union*)&ctx->Color.ClearColor);
+ if (!st_draw_quad(st, x0, y0, x1, y1,
+ ctx->Depth.Clear * 2.0f - 1.0f,
+ 0.0f, 0.0f, 0.0f, 0.0f,
+ (const float *) &ctx->Color.ClearColor.f,
+ num_layers)) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glClear");
+ }
/* Restore pipe state */
- cso_restore_blend(st->cso_context);
- cso_restore_stencil_ref(st->cso_context);
- cso_restore_depth_stencil_alpha(st->cso_context);
- cso_restore_rasterizer(st->cso_context);
- cso_restore_sample_mask(st->cso_context);
- cso_restore_min_samples(st->cso_context);
- cso_restore_viewport(st->cso_context);
- cso_restore_fragment_shader(st->cso_context);
- cso_restore_vertex_shader(st->cso_context);
- cso_restore_tessctrl_shader(st->cso_context);
- cso_restore_tesseval_shader(st->cso_context);
- cso_restore_geometry_shader(st->cso_context);
- cso_restore_vertex_elements(st->cso_context);
- cso_restore_aux_vertex_buffer_slot(st->cso_context);
- cso_restore_stream_outputs(st->cso_context);
+ cso_restore_state(cso);
}
projects / mesa.git / blobdiff