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| /********************************************************** |
| * 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 "svga_cmd.h" |
| |
| #include "util/u_inlines.h" |
| |
| #include "svga_context.h" |
| #include "svga_surface.h" |
| |
| |
| static void svga_set_scissor_states( struct pipe_context *pipe, |
| unsigned start_slot, |
| unsigned num_scissors, |
| const struct pipe_scissor_state *scissors ) |
| { |
| struct svga_context *svga = svga_context(pipe); |
| |
| memcpy( &svga->curr.scissor, scissors, sizeof(*scissors) ); |
| svga->dirty |= SVGA_NEW_SCISSOR; |
| } |
| |
| |
| static void svga_set_polygon_stipple( struct pipe_context *pipe, |
| const struct pipe_poly_stipple *stipple ) |
| { |
| /* overridden by the draw module */ |
| } |
| |
| |
| void svga_cleanup_framebuffer(struct svga_context *svga) |
| { |
| struct pipe_framebuffer_state *curr = &svga->curr.framebuffer; |
| struct pipe_framebuffer_state *hw = &svga->state.hw_clear.framebuffer; |
| int i; |
| |
| for (i = 0; i < PIPE_MAX_COLOR_BUFS; 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; |
| boolean propagate = FALSE; |
| unsigned i; |
| |
| dst->width = fb->width; |
| dst->height = fb->height; |
| dst->nr_cbufs = fb->nr_cbufs; |
| |
| /* check if we need to propagate any of the target surfaces */ |
| for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { |
| if (dst->cbufs[i] && dst->cbufs[i] != fb->cbufs[i]) |
| if (svga_surface_needs_propagation(dst->cbufs[i])) |
| propagate = TRUE; |
| } |
| |
| if (propagate) { |
| /* make sure that drawing calls comes before propagation calls */ |
| svga_hwtnl_flush_retry( svga ); |
| |
| for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) |
| if (dst->cbufs[i] && dst->cbufs[i] != fb->cbufs[i]) |
| svga_propagate_surface(svga, dst->cbufs[i]); |
| } |
| |
| /* XXX: Actually the virtual hardware may support rendertargets with |
| * different size, depending on the host API and driver, but since we cannot |
| * know that make no such assumption here. */ |
| for(i = 0; i < fb->nr_cbufs; ++i) { |
| if (fb->zsbuf && fb->cbufs[i]) { |
| assert(fb->zsbuf->width == fb->cbufs[i]->width); |
| assert(fb->zsbuf->height == fb->cbufs[i]->height); |
| } |
| } |
| |
| for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { |
| pipe_surface_reference(&dst->cbufs[i], |
| (i < fb->nr_cbufs) ? fb->cbufs[i] : NULL); |
| } |
| pipe_surface_reference(&dst->zsbuf, fb->zsbuf); |
| |
| |
| 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; |
| } |
| |
| |
| |
| /* Called when driver state tracker notices changes to the viewport |
| * matrix: |
| */ |
| 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); |
| |
| svga->curr.viewport = *viewports; /* struct copy */ |
| |
| svga->dirty |= SVGA_NEW_VIEWPORT; |
| } |
| |
| |
| |
| 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; |
| } |
| |
| |