* Keith Whitwell <keith@tungstengraphics.com>
*/
-#include "imports.h"
-#include "macros.h"
+#include "pipe/p_util.h"
#include "draw_context.h"
#include "draw_private.h"
+
struct draw_context *draw_create( void )
{
struct draw_context *draw = CALLOC_STRUCT( draw_context );
draw->pipeline.clip = draw_clip_stage( draw );
draw->pipeline.flatshade = draw_flatshade_stage( draw );
draw->pipeline.cull = draw_cull_stage( draw );
+ draw->pipeline.feedback = draw_feedback_stage( draw );
+ draw->pipeline.validate = draw_validate_stage( draw );
+ draw->pipeline.first = draw->pipeline.validate;
ASSIGN_4V( draw->plane[0], -1, 0, 0, 1 );
ASSIGN_4V( draw->plane[1], 1, 0, 0, 1 );
ASSIGN_4V( draw->plane[5], 0, 0, -1, 1 ); /* mesa's a bit wonky */
draw->nr_planes = 6;
- draw->vf = vf_create( GL_TRUE );
-
- return draw;
-}
+ /* Statically allocate maximum sized vertices for the cache - could be cleverer...
+ */
+ {
+ int i;
+ char *tmp = malloc(Elements(draw->vcache.vertex) * MAX_VERTEX_SIZE);
+ for (i = 0; i < Elements(draw->vcache.vertex); i++)
+ draw->vcache.vertex[i] = (struct vertex_header *)(tmp + i * MAX_VERTEX_SIZE);
+ }
-void draw_destroy( struct draw_context *draw )
-{
- if (draw->header.storage)
- ALIGN_FREE( draw->header.storage );
+ draw->attrib_front0 = -1;
+ draw->attrib_back0 = -1;
+ draw->attrib_front1 = -1;
+ draw->attrib_back1 = -1;
- vf_destroy( draw->vf );
+ draw_vertex_cache_invalidate( draw );
- FREE( draw );
+ return draw;
}
-/**
- * Rebuild the rendering pipeline.
- */
-static void validate_pipeline( struct draw_context *draw )
+void draw_destroy( struct draw_context *draw )
{
- struct draw_stage *next = draw->pipeline.setup;
-
- /*
- * NOTE: we build up the pipeline in end-to-start order.
- *
- * TODO: make the current primitive part of the state and build
- * shorter pipelines for lines & points.
- */
+ free( draw->vcache.vertex[0] ); /* Frees all the vertices. */
+ free( draw );
+}
- if (draw->setup.fill_cw != PIPE_POLYGON_MODE_FILL ||
- draw->setup.fill_ccw != PIPE_POLYGON_MODE_FILL) {
- draw->pipeline.unfilled->next = next;
- next = draw->pipeline.unfilled;
- }
-
- if (draw->setup.offset_cw ||
- draw->setup.offset_ccw) {
- draw->pipeline.offset->next = next;
- next = draw->pipeline.offset;
- }
- if (draw->setup.light_twoside) {
- draw->pipeline.twoside->next = next;
- next = draw->pipeline.twoside;
- }
- /* Always run the cull stage as we calculate determinant there
- * also. Fix this..
- */
- {
- draw->pipeline.cull->next = next;
- next = draw->pipeline.cull;
- }
+void draw_flush( struct draw_context *draw )
+{
+ if (draw->drawing)
+ draw_do_flush( draw, DRAW_FLUSH_DRAW );
+}
- /* Clip stage
- */
- {
- draw->pipeline.clip->next = next;
- next = draw->pipeline.clip;
- }
- /* Do software flatshading prior to clipping. XXX: should only do
- * this for clipped primitives, ie it is a part of the clip
- * routine.
- */
- if (draw->setup.flatshade) {
- draw->pipeline.flatshade->next = next;
- next = draw->pipeline.flatshade;
- }
-
- draw->pipeline.first = next;
+void draw_set_feedback_state( struct draw_context *draw,
+ const struct pipe_feedback_state *feedback )
+{
+ draw_flush( draw );
+ draw->feedback = *feedback;
}
/**
- * Register new primitive setup/rendering state.
+ * Register new primitive rasterization/rendering state.
* This causes the drawing pipeline to be rebuilt.
*/
-void draw_set_setup_state( struct draw_context *draw,
- const struct pipe_setup_state *setup )
+void draw_set_rasterizer_state( struct draw_context *draw,
+ const struct pipe_rasterizer_state *raster )
{
- memcpy( &draw->setup, setup, sizeof(*setup) );
- validate_pipeline( draw );
+ draw_flush( draw );
+ draw->rasterizer = raster;
}
* Plug in the primitive rendering/rasterization stage.
* This is provided by the device driver.
*/
-void draw_set_setup_stage( struct draw_context *draw,
- struct draw_stage *stage )
+void draw_set_rasterize_stage( struct draw_context *draw,
+ struct draw_stage *stage )
{
- draw->pipeline.setup = stage;
+ draw_flush( draw );
+ draw->pipeline.rasterize = stage;
}
void draw_set_clip_state( struct draw_context *draw,
const struct pipe_clip_state *clip )
{
+ draw_flush( draw );
+
+ assert(clip->nr <= PIPE_MAX_CLIP_PLANES);
memcpy(&draw->plane[6], clip->ucp, clip->nr * sizeof(clip->ucp[0]));
draw->nr_planes = 6 + clip->nr;
+ /* bitmask of the enabled user-defined clip planes */
+ draw->user_clipmask = ((1 << clip->nr) - 1) << 6;
}
void draw_set_viewport_state( struct draw_context *draw,
const struct pipe_viewport_state *viewport )
{
+ draw_flush( draw );
draw->viewport = *viewport; /* struct copy */
+}
- vf_set_vp_scale_translate( draw->vf, viewport->scale, viewport->translate );
- /* Using tnl/ and vf/ modules is temporary while getting started.
- * Full pipe will have vertex shader, vertex fetch of its own.
- */
+void
+draw_set_vertex_shader(struct draw_context *draw,
+ const struct pipe_shader_state *shader)
+{
+ draw_flush( draw );
+ draw->vertex_shader = *shader;
+}
+
+
+void
+draw_set_vertex_buffer(struct draw_context *draw,
+ unsigned attr,
+ const struct pipe_vertex_buffer *buffer)
+{
+ draw_flush( draw );
+
+ assert(attr < PIPE_ATTRIB_MAX);
+ draw->vertex_buffer[attr] = *buffer;
}
+
+
+void
+draw_set_vertex_element(struct draw_context *draw,
+ unsigned attr,
+ const struct pipe_vertex_element *element)
+{
+ draw_flush( draw );
+
+ assert(attr < PIPE_ATTRIB_MAX);
+ draw->vertex_element[attr] = *element;
+}
+
+
+/**
+ * Tell drawing context where to find mapped vertex buffers.
+ */
+void
+draw_set_mapped_vertex_buffer(struct draw_context *draw,
+ unsigned attr, const void *buffer)
+{
+ draw_flush( draw );
+
+ draw->mapped_vbuffer[attr] = buffer;
+}
+
+
+void
+draw_set_mapped_constant_buffer(struct draw_context *draw,
+ const void *buffer)
+{
+ draw_flush( draw );
+
+ draw->mapped_constants = buffer;
+}
+
+
+void
+draw_set_mapped_feedback_buffer(struct draw_context *draw, uint index,
+ void *buffer, uint size)
+{
+ draw_flush( draw );
+
+ assert(index < PIPE_MAX_FEEDBACK_ATTRIBS);
+ draw->mapped_feedback_buffer[index] = buffer;
+ draw->mapped_feedback_buffer_size[index] = size; /* in bytes */
+}
+
+
+
+
+
+/**
+ * Allocate space for temporary post-transform vertices, such as for clipping.
+ */
+void draw_alloc_tmps( struct draw_stage *stage, unsigned nr )
+{
+ stage->nr_tmps = nr;
+
+ if (nr) {
+ ubyte *store = (ubyte *) malloc(MAX_VERTEX_SIZE * nr);
+ unsigned i;
+
+ stage->tmp = (struct vertex_header **) malloc(sizeof(struct vertex_header *) * nr);
+
+ for (i = 0; i < nr; i++)
+ stage->tmp[i] = (struct vertex_header *)(store + i * MAX_VERTEX_SIZE);
+ }
+}
+
+void draw_free_tmps( struct draw_stage *stage )
+{
+ if (stage->tmp) {
+ free(stage->tmp[0]);
+ free(stage->tmp);
+ }
+}
+
+
projects / mesa.git / blobdiff