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