return true;
}
-
-/**
- * Use blitting to clear the renderbuffers named by 'flags'.
- * Note: we can't use the ctx->DrawBuffer->_ColorDrawBufferIndexes field
- * since that might include software renderbuffers or renderbuffers
- * which we're clearing with triangles.
- * \param mask bitmask of BUFFER_BIT_* values indicating buffers to clear
- */
-GLbitfield
-intelClearWithBlit(struct gl_context *ctx, GLbitfield mask)
-{
- struct intel_context *intel = intel_context(ctx);
- struct gl_framebuffer *fb = ctx->DrawBuffer;
- GLuint clear_depth_value, clear_depth_mask;
- GLint cx, cy, cw, ch;
- GLbitfield fail_mask = 0;
- BATCH_LOCALS;
-
- /* Note: we don't use this function on Gen7+ hardware, so we can safely
- * ignore fast color clear issues.
- */
- assert(intel->gen < 7);
-
- /*
- * Compute values for clearing the buffers.
- */
- clear_depth_value = 0;
- clear_depth_mask = 0;
- if (mask & BUFFER_BIT_DEPTH) {
- clear_depth_value = (GLuint) (fb->_DepthMax * ctx->Depth.Clear);
- clear_depth_mask = XY_BLT_WRITE_RGB;
- }
- if (mask & BUFFER_BIT_STENCIL) {
- clear_depth_value |= (ctx->Stencil.Clear & 0xff) << 24;
- clear_depth_mask |= XY_BLT_WRITE_ALPHA;
- }
-
- cx = fb->_Xmin;
- if (_mesa_is_winsys_fbo(fb))
- cy = ctx->DrawBuffer->Height - fb->_Ymax;
- else
- cy = fb->_Ymin;
- cw = fb->_Xmax - fb->_Xmin;
- ch = fb->_Ymax - fb->_Ymin;
-
- if (cw == 0 || ch == 0)
- return 0;
-
- /* Loop over all renderbuffers */
- mask &= (1 << BUFFER_COUNT) - 1;
- while (mask) {
- GLuint buf = ffs(mask) - 1;
- bool is_depth_stencil = buf == BUFFER_DEPTH || buf == BUFFER_STENCIL;
- struct intel_renderbuffer *irb;
- int x1, y1, x2, y2;
- uint32_t clear_val;
- uint32_t BR13, CMD;
- struct intel_region *region;
- int pitch, cpp;
- drm_intel_bo *aper_array[2];
-
- mask &= ~(1 << buf);
-
- irb = intel_get_renderbuffer(fb, buf);
- if (irb && irb->mt) {
- region = irb->mt->region;
- assert(region);
- assert(region->bo);
- } else {
- fail_mask |= 1 << buf;
- continue;
- }
-
- /* OK, clear this renderbuffer */
- x1 = cx + irb->draw_x;
- y1 = cy + irb->draw_y;
- x2 = cx + cw + irb->draw_x;
- y2 = cy + ch + irb->draw_y;
-
- pitch = region->pitch;
- cpp = region->cpp;
-
- DBG("%s dst:buf(%p)/%d %d,%d sz:%dx%d\n",
- __FUNCTION__,
- region->bo, pitch,
- x1, y1, x2 - x1, y2 - y1);
-
- BR13 = 0xf0 << 16;
- CMD = XY_COLOR_BLT_CMD;
-
- /* Setup the blit command */
- if (cpp == 4) {
- if (is_depth_stencil) {
- CMD |= clear_depth_mask;
- } else {
- /* clearing RGBA */
- CMD |= XY_BLT_WRITE_ALPHA | XY_BLT_WRITE_RGB;
- }
- }
-
- assert(region->tiling != I915_TILING_Y);
-
- if (region->tiling != I915_TILING_NONE) {
- CMD |= XY_DST_TILED;
- pitch /= 4;
- }
- BR13 |= pitch;
-
- if (is_depth_stencil) {
- clear_val = clear_depth_value;
- } else {
- uint8_t clear[4];
- GLfloat *color = ctx->Color.ClearColor.f;
-
- _mesa_unclamped_float_rgba_to_ubyte(clear, color);
-
- switch (intel_rb_format(irb)) {
- case MESA_FORMAT_ARGB8888:
- case MESA_FORMAT_XRGB8888:
- clear_val = PACK_COLOR_8888(clear[3], clear[0],
- clear[1], clear[2]);
- break;
- case MESA_FORMAT_RGB565:
- clear_val = PACK_COLOR_565(clear[0], clear[1], clear[2]);
- break;
- case MESA_FORMAT_ARGB4444:
- clear_val = PACK_COLOR_4444(clear[3], clear[0],
- clear[1], clear[2]);
- break;
- case MESA_FORMAT_ARGB1555:
- clear_val = PACK_COLOR_1555(clear[3], clear[0],
- clear[1], clear[2]);
- break;
- case MESA_FORMAT_A8:
- clear_val = PACK_COLOR_8888(clear[3], clear[3],
- clear[3], clear[3]);
- break;
- default:
- fail_mask |= 1 << buf;
- continue;
- }
- }
-
- BR13 |= br13_for_cpp(cpp);
-
- assert(x1 < x2);
- assert(y1 < y2);
-
- /* do space check before going any further */
- aper_array[0] = intel->batch.bo;
- aper_array[1] = region->bo;
-
- if (drm_intel_bufmgr_check_aperture_space(aper_array,
- ARRAY_SIZE(aper_array)) != 0) {
- intel_batchbuffer_flush(intel);
- }
-
- BEGIN_BATCH_BLT(6);
- OUT_BATCH(CMD | (6 - 2));
- OUT_BATCH(BR13);
- OUT_BATCH((y1 << 16) | x1);
- OUT_BATCH((y2 << 16) | x2);
- OUT_RELOC_FENCED(region->bo,
- I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER,
- 0);
- OUT_BATCH(clear_val);
- ADVANCE_BATCH();
-
- if (intel->always_flush_cache)
- intel_batchbuffer_emit_mi_flush(intel);
-
- if (buf == BUFFER_DEPTH || buf == BUFFER_STENCIL)
- mask &= ~(BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL);
- }
-
- return fail_mask;
-}
-
bool
intelEmitImmediateColorExpandBlit(struct intel_context *intel,
GLuint cpp,
projects / mesa.git / commitdiff