diff options
author | Zack Rusin <zackr@vmware.com> | 2009-08-27 17:39:20 -0400 |
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committer | Zack Rusin <zackr@vmware.com> | 2009-08-27 17:39:45 -0400 |
commit | f9a3fce09044fbfe9a9b973d33b31cfe826d1386 (patch) | |
tree | b09d0f3c3088c6e6011fe4999d52ac100c022117 /src/gallium/state_trackers/xorg/xorg_composite.c | |
parent | 3f15ea866fbd82d873943f80b09124a618692a7c (diff) |
st/xorg: bind framebuffer and viewport for exa
Diffstat (limited to 'src/gallium/state_trackers/xorg/xorg_composite.c')
-rw-r--r-- | src/gallium/state_trackers/xorg/xorg_composite.c | 104 |
1 files changed, 103 insertions, 1 deletions
diff --git a/src/gallium/state_trackers/xorg/xorg_composite.c b/src/gallium/state_trackers/xorg/xorg_composite.c index bf9c82a707..642be3b726 100644 --- a/src/gallium/state_trackers/xorg/xorg_composite.c +++ b/src/gallium/state_trackers/xorg/xorg_composite.c @@ -1,5 +1,9 @@ #include "xorg_composite.h" +#include <cso_cache/cso_context.h> + +#include <pipe/p_inlines.h> + struct xorg_composite_blend { int op:8; @@ -97,12 +101,110 @@ boolean xorg_composite_accelerated(int op, return FALSE; } +static void +bind_framebuffer_state(struct exa_context *exa, PicturePtr pDstPicture, + struct exa_pixmap_priv *pDst) +{ + unsigned i; + struct pipe_framebuffer_state state; + struct pipe_surface *surface = exa_gpu_surface(exa, pDst); + memset(&state, 0, sizeof(struct pipe_framebuffer_state)); + + state.width = pDstPicture->pDrawable->width; + state.height = pDstPicture->pDrawable->height; + + state.nr_cbufs = 1; + state.cbufs[0] = surface; + for (i = 1; i < PIPE_MAX_COLOR_BUFS; ++i) + state.cbufs[i] = 0; + + /* currently we don't use depth/stencil */ + state.zsbuf = 0; + + cso_set_framebuffer(exa->cso, &state); +} + +enum AxisOrientation { + Y0_BOTTOM, + Y0_TOP +}; + +static void +set_viewport(struct exa_context *exa, int width, int height, + enum AxisOrientation orientation) +{ + struct pipe_viewport_state viewport; + float y_scale = (orientation == Y0_BOTTOM) ? -2.f : 2.f; + + viewport.scale[0] = width / 2.f; + viewport.scale[1] = height / y_scale; + viewport.scale[2] = 1.0; + viewport.scale[3] = 1.0; + viewport.translate[0] = width / 2.f; + viewport.translate[1] = height / 2.f; + viewport.translate[2] = 0.0; + viewport.translate[3] = 0.0; + + cso_set_viewport(exa->cso, &viewport); +} + +static void +bind_viewport_state(struct exa_context *exa, PicturePtr pDstPicture) +{ + const int param_bytes = 8 * sizeof(float); + int width = pDstPicture->pDrawable->width; + int height = pDstPicture->pDrawable->height; + float vs_consts[8] = { + 2.f/width, 2.f/height, 1, 1, + -1, -1, 0, 0 + }; + struct pipe_constant_buffer *cbuf = &exa->vs_const_buffer; + + set_viewport(exa, width, height, Y0_BOTTOM); + + pipe_buffer_reference(&cbuf->buffer, NULL); + cbuf->buffer = pipe_buffer_create(exa->ctx->screen, 16, + PIPE_BUFFER_USAGE_CONSTANT, + param_bytes); + + if (cbuf->buffer) { + pipe_buffer_write(exa->ctx->screen, cbuf->buffer, + 0, param_bytes, vs_consts); + } + exa->ctx->set_constant_buffer(exa->ctx, PIPE_SHADER_VERTEX, 0, cbuf); +} + +static void +bind_blend_state() +{ +} + +static void +bind_rasterizer_state() +{ +} + +static void +bind_shaders() +{ +} + + boolean xorg_composite_bind_state(struct exa_context *exa, int op, PicturePtr pSrcPicture, PicturePtr pMaskPicture, - PicturePtr pDstPicture) + PicturePtr pDstPicture, + struct exa_pixmap_priv *pSrc, + struct exa_pixmap_priv *pMask, + struct exa_pixmap_priv *pDst) { + bind_framebuffer_state(exa, pDstPicture, pDst); + bind_viewport_state(exa, pDstPicture); + bind_blend_state(); + bind_rasterizer_state(); + bind_shaders(); + return FALSE; } |