| /********************************************************** |
| * Copyright 2008-2009 VMware, Inc. All rights reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person |
| * obtaining a copy of this software and associated documentation |
| * files (the "Software"), to deal in the Software without |
| * restriction, including without limitation the rights to use, copy, |
| * modify, merge, publish, distribute, sublicense, and/or sell copies |
| * of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be |
| * included in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| * |
| **********************************************************/ |
| |
| #include "util/u_framebuffer.h" |
| #include "util/u_inlines.h" |
| #include "util/u_pstipple.h" |
| |
| #include "svga_cmd.h" |
| #include "svga_context.h" |
| #include "svga_screen.h" |
| #include "svga_surface.h" |
| #include "svga_resource_texture.h" |
| |
| |
| static void |
| svga_set_scissor_states(struct pipe_context *pipe, |
| unsigned start_slot, |
| unsigned num_scissors, |
| const struct pipe_scissor_state *scissors) |
| { |
| ASSERTED struct svga_screen *svgascreen = svga_screen(pipe->screen); |
| struct svga_context *svga = svga_context(pipe); |
| unsigned i, num_sc; |
| |
| assert(start_slot + num_scissors <= svgascreen->max_viewports); |
| |
| for (i = 0, num_sc = start_slot; i < num_scissors; i++) { |
| svga->curr.scissor[num_sc++] = scissors[i]; /* struct copy */ |
| } |
| |
| svga->dirty |= SVGA_NEW_SCISSOR; |
| } |
| |
| |
| static void |
| svga_set_polygon_stipple(struct pipe_context *pipe, |
| const struct pipe_poly_stipple *stipple) |
| { |
| struct svga_context *svga = svga_context(pipe); |
| |
| /* release old texture */ |
| pipe_resource_reference(&svga->polygon_stipple.texture, NULL); |
| |
| /* release old sampler view */ |
| if (svga->polygon_stipple.sampler_view) { |
| pipe->sampler_view_destroy(pipe, |
| &svga->polygon_stipple.sampler_view->base); |
| } |
| |
| /* create new stipple texture */ |
| svga->polygon_stipple.texture = |
| util_pstipple_create_stipple_texture(pipe, stipple->stipple); |
| |
| /* create new sampler view */ |
| svga->polygon_stipple.sampler_view = |
| (struct svga_pipe_sampler_view *) |
| util_pstipple_create_sampler_view(pipe, |
| svga->polygon_stipple.texture); |
| |
| /* allocate sampler state, if first time */ |
| if (!svga->polygon_stipple.sampler) { |
| svga->polygon_stipple.sampler = util_pstipple_create_sampler(pipe); |
| } |
| |
| svga->dirty |= SVGA_NEW_STIPPLE; |
| } |
| |
| |
| void |
| svga_cleanup_framebuffer(struct svga_context *svga) |
| { |
| struct svga_screen *svgascreen = svga_screen(svga->pipe.screen); |
| struct pipe_framebuffer_state *curr = &svga->curr.framebuffer; |
| struct pipe_framebuffer_state *hw = &svga->state.hw_clear.framebuffer; |
| unsigned i; |
| |
| for (i = 0; i < svgascreen->max_color_buffers; i++) { |
| pipe_surface_reference(&curr->cbufs[i], NULL); |
| pipe_surface_reference(&hw->cbufs[i], NULL); |
| } |
| |
| pipe_surface_reference(&curr->zsbuf, NULL); |
| pipe_surface_reference(&hw->zsbuf, NULL); |
| } |
| |
| |
| #define DEPTH_BIAS_SCALE_FACTOR_D16 ((float)(1<<15)) |
| #define DEPTH_BIAS_SCALE_FACTOR_D24S8 ((float)(1<<23)) |
| #define DEPTH_BIAS_SCALE_FACTOR_D32 ((float)(1<<31)) |
| |
| |
| static void |
| svga_set_framebuffer_state(struct pipe_context *pipe, |
| const struct pipe_framebuffer_state *fb) |
| { |
| struct svga_context *svga = svga_context(pipe); |
| struct pipe_framebuffer_state *dst = &svga->curr.framebuffer; |
| unsigned i; |
| |
| /* make sure any pending drawing calls are flushed before changing |
| * the framebuffer state |
| */ |
| svga_hwtnl_flush_retry(svga); |
| |
| dst->width = fb->width; |
| dst->height = fb->height; |
| dst->nr_cbufs = fb->nr_cbufs; |
| |
| /* Check that all surfaces are the same size. |
| * Actually, the virtual hardware may support rendertargets with |
| * different size, depending on the host API and driver, |
| */ |
| { |
| int width = 0, height = 0; |
| if (fb->zsbuf) { |
| width = fb->zsbuf->width; |
| height = fb->zsbuf->height; |
| } |
| for (i = 0; i < fb->nr_cbufs; ++i) { |
| if (fb->cbufs[i]) { |
| if (width && height) { |
| if (fb->cbufs[i]->width != width || |
| fb->cbufs[i]->height != height) { |
| debug_warning("Mixed-size color and depth/stencil surfaces " |
| "may not work properly"); |
| } |
| } |
| else { |
| width = fb->cbufs[i]->width; |
| height = fb->cbufs[i]->height; |
| } |
| } |
| } |
| } |
| |
| util_copy_framebuffer_state(dst, fb); |
| |
| if (svga->curr.framebuffer.zsbuf) { |
| switch (svga->curr.framebuffer.zsbuf->format) { |
| case PIPE_FORMAT_Z16_UNORM: |
| svga->curr.depthscale = 1.0f / DEPTH_BIAS_SCALE_FACTOR_D16; |
| break; |
| case PIPE_FORMAT_Z24_UNORM_S8_UINT: |
| case PIPE_FORMAT_Z24X8_UNORM: |
| case PIPE_FORMAT_S8_UINT_Z24_UNORM: |
| case PIPE_FORMAT_X8Z24_UNORM: |
| svga->curr.depthscale = 1.0f / DEPTH_BIAS_SCALE_FACTOR_D24S8; |
| break; |
| case PIPE_FORMAT_Z32_UNORM: |
| svga->curr.depthscale = 1.0f / DEPTH_BIAS_SCALE_FACTOR_D32; |
| break; |
| case PIPE_FORMAT_Z32_FLOAT: |
| svga->curr.depthscale = 1.0f / ((float)(1<<23)); |
| break; |
| default: |
| svga->curr.depthscale = 0.0f; |
| break; |
| } |
| } |
| else { |
| svga->curr.depthscale = 0.0f; |
| } |
| |
| svga->dirty |= SVGA_NEW_FRAME_BUFFER; |
| } |
| |
| |
| static void |
| svga_set_clip_state(struct pipe_context *pipe, |
| const struct pipe_clip_state *clip) |
| { |
| struct svga_context *svga = svga_context(pipe); |
| |
| svga->curr.clip = *clip; /* struct copy */ |
| |
| svga->dirty |= SVGA_NEW_CLIP; |
| } |
| |
| |
| static void |
| svga_set_viewport_states(struct pipe_context *pipe, |
| unsigned start_slot, |
| unsigned num_viewports, |
| const struct pipe_viewport_state *viewports) |
| { |
| struct svga_context *svga = svga_context(pipe); |
| ASSERTED struct svga_screen *svgascreen = svga_screen(pipe->screen); |
| unsigned i, num_vp; |
| |
| assert(start_slot + num_viewports <= svgascreen->max_viewports); |
| |
| for (i = 0, num_vp = start_slot; i < num_viewports; i++) { |
| svga->curr.viewport[num_vp++] = viewports[i]; /* struct copy */ |
| } |
| |
| svga->dirty |= SVGA_NEW_VIEWPORT; |
| } |
| |
| |
| /** |
| * Called by state tracker to specify a callback function the driver |
| * can use to report info back to the gallium frontend. |
| */ |
| static void |
| svga_set_debug_callback(struct pipe_context *pipe, |
| const struct pipe_debug_callback *cb) |
| { |
| struct svga_context *svga = svga_context(pipe); |
| |
| if (cb) { |
| svga->debug.callback = *cb; |
| svga->swc->debug_callback = &svga->debug.callback; |
| } else { |
| memset(&svga->debug.callback, 0, sizeof(svga->debug.callback)); |
| svga->swc->debug_callback = NULL; |
| } |
| } |
| |
| |
| void |
| svga_init_misc_functions(struct svga_context *svga) |
| { |
| svga->pipe.set_scissor_states = svga_set_scissor_states; |
| svga->pipe.set_polygon_stipple = svga_set_polygon_stipple; |
| svga->pipe.set_framebuffer_state = svga_set_framebuffer_state; |
| svga->pipe.set_clip_state = svga_set_clip_state; |
| svga->pipe.set_viewport_states = svga_set_viewport_states; |
| svga->pipe.set_debug_callback = svga_set_debug_callback; |
| } |