diff options
Diffstat (limited to 'src/gallium/drivers/svga/svga_pipe_misc.c')
| -rw-r--r-- | src/gallium/drivers/svga/svga_pipe_misc.c | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/src/gallium/drivers/svga/svga_pipe_misc.c b/src/gallium/drivers/svga/svga_pipe_misc.c new file mode 100644 index 00000000000..58cb1e6e230 --- /dev/null +++ b/src/gallium/drivers/svga/svga_pipe_misc.c @@ -0,0 +1,187 @@ +/********************************************************** + * 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 "svga_context.h" +#include "svga_screen_texture.h" +#include "svga_state.h" +#include "svga_winsys.h" + +#include "svga_hw_reg.h" + + + + +static void svga_set_scissor_state( struct pipe_context *pipe, + const struct pipe_scissor_state *scissor ) +{ + struct svga_context *svga = svga_context(pipe); + + memcpy( &svga->curr.scissor, scissor, sizeof(*scissor) ); + 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; + int i; + + dst->width = fb->width; + dst->height = fb->height; + dst->nr_cbufs = fb->nr_cbufs; + + /* check if we need to propaget 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(pipe, 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], fb->cbufs[i]); + 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_S8Z24_UNORM: + case PIPE_FORMAT_X8Z24_UNORM: + case PIPE_FORMAT_Z24S8_UNORM: + case PIPE_FORMAT_Z24X8_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_state( struct pipe_context *pipe, + const struct pipe_viewport_state *viewport ) +{ + struct svga_context *svga = svga_context(pipe); + + svga->curr.viewport = *viewport; /* struct copy */ + + svga->dirty |= SVGA_NEW_VIEWPORT; +} + + + +void svga_init_misc_functions( struct svga_context *svga ) +{ + svga->pipe.set_scissor_state = svga_set_scissor_state; + 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_state = svga_set_viewport_state; +} + + |