**************************************************************************/
-#include "context.h"
-#include "colormac.h"
+#include "main/context.h"
#include "st_context.h"
-#include "pipe/p_context.h"
#include "st_atom.h"
-
+#include "pipe/p_context.h"
+#include "cso_cache/cso_context.h"
/**
* Update the viewport transformation matrix. Depends on:
static void
update_viewport( struct st_context *st )
{
- GLcontext *ctx = st->ctx;
+ struct gl_context *ctx = st->ctx;
GLfloat yScale, yBias;
/* _NEW_BUFFERS
*/
if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
+ /* Drawing to a window. The corresponding gallium surface uses
+ * Y=0=TOP but OpenGL is Y=0=BOTTOM. So we need to invert the viewport.
+ */
yScale = -1;
- yBias = ctx->DrawBuffer->Height ;
+ yBias = (GLfloat)ctx->DrawBuffer->Height;
}
else {
+ /* Drawing to an FBO where Y=0=BOTTOM, like OpenGL - don't invert */
yScale = 1.0;
yBias = 0.0;
}
/* _NEW_VIEWPORT
*/
{
- GLfloat x = ctx->Viewport.X;
- GLfloat y = ctx->Viewport.Y;
+ GLfloat x = (GLfloat)ctx->Viewport.X;
+ GLfloat y = (GLfloat)ctx->Viewport.Y;
GLfloat z = ctx->Viewport.Near;
- GLfloat half_width = ctx->Viewport.Width / 2.0;
- GLfloat half_height = ctx->Viewport.Height / 2.0;
- GLfloat half_depth = (ctx->Viewport.Far - ctx->Viewport.Near) / 2.0;
- struct pipe_viewport_state vp;
+ GLfloat half_width = (GLfloat)ctx->Viewport.Width * 0.5f;
+ GLfloat half_height = (GLfloat)ctx->Viewport.Height * 0.5f;
+ GLfloat half_depth = (GLfloat)(ctx->Viewport.Far - ctx->Viewport.Near) * 0.5f;
- vp.scale[0] = half_width;
- vp.scale[1] = half_height * yScale;
- vp.scale[2] = half_depth;
- vp.scale[3] = 1.0;
+ st->state.viewport.scale[0] = half_width;
+ st->state.viewport.scale[1] = half_height * yScale;
+ st->state.viewport.scale[2] = half_depth;
+ st->state.viewport.scale[3] = 1.0;
- vp.translate[0] = half_width + x;
- vp.translate[1] = (half_height + y) * yScale + yBias;
- vp.translate[2] = half_depth + z;
- vp.translate[3] = 0.0;
+ st->state.viewport.translate[0] = half_width + x;
+ st->state.viewport.translate[1] = (half_height + y) * yScale + yBias;
+ st->state.viewport.translate[2] = half_depth + z;
+ st->state.viewport.translate[3] = 0.0;
- if (memcmp(&vp, &st->state.viewport, sizeof(vp)) != 0) {
- st->state.viewport = vp;
- st->pipe->set_viewport_state(st->pipe, &vp);
- }
+ cso_set_viewport(st->cso_context, &st->state.viewport);
}
}
const struct st_tracked_state st_update_viewport = {
- .dirty = {
- .mesa = _NEW_BUFFERS | _NEW_VIEWPORT,
- .st = 0,
+ "st_update_viewport", /* name */
+ { /* dirty */
+ _NEW_BUFFERS | _NEW_VIEWPORT, /* mesa */
+ 0, /* st */
},
- .update = update_viewport
+ update_viewport /* update */
};