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path: root/src/gallium/drivers/r300/r300_render.c
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Diffstat (limited to 'src/gallium/drivers/r300/r300_render.c')
-rw-r--r--src/gallium/drivers/r300/r300_render.c315
1 files changed, 315 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_render.c b/src/gallium/drivers/r300/r300_render.c
new file mode 100644
index 0000000000..b7ee8fb8a9
--- /dev/null
+++ b/src/gallium/drivers/r300/r300_render.c
@@ -0,0 +1,315 @@
+/*
+ * Copyright 2009 Corbin Simpson <MostAwesomeDude@gmail.com>
+ *
+ * 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
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, 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 (including the next
+ * paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR SUPPLIERS 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 "draw/draw_pipe.h"
+#include "draw/draw_vbuf.h"
+#include "util/u_memory.h"
+
+#include "r300_cs.h"
+#include "r300_context.h"
+#include "r300_reg.h"
+#include "r300_state_derived.h"
+
+/* r300_render: Vertex and index buffer primitive emission. */
+
+struct r300_render {
+ /* Parent class */
+ struct vbuf_render base;
+
+ /* Pipe context */
+ struct r300_context* r300;
+
+ /* Vertex information */
+ size_t vertex_size;
+ unsigned prim;
+ unsigned hwprim;
+
+ /* VBO */
+ struct pipe_buffer* vbo;
+ size_t vbo_size;
+ size_t vbo_offset;
+ void* vbo_map;
+ size_t vbo_alloc_size;
+ size_t vbo_max_used;
+};
+
+static INLINE struct r300_render*
+r300_render(struct vbuf_render* render)
+{
+ return (struct r300_render*)render;
+}
+
+static const struct vertex_info*
+r300_render_get_vertex_info(struct vbuf_render* render)
+{
+ struct r300_render* r300render = r300_render(render);
+ struct r300_context* r300 = r300render->r300;
+
+ r300_update_derived_state(r300);
+
+ return &r300->vertex_info.vinfo;
+}
+
+static boolean r300_render_allocate_vertices(struct vbuf_render* render,
+ ushort vertex_size,
+ ushort count)
+{
+ struct r300_render* r300render = r300_render(render);
+ struct r300_context* r300 = r300render->r300;
+ struct pipe_screen* screen = r300->context.screen;
+ size_t size = (size_t)vertex_size * (size_t)count;
+
+ if (r300render->vbo) {
+ pipe_buffer_reference(&r300render->vbo, NULL);
+ }
+
+ r300render->vbo_size = MAX2(size, r300render->vbo_alloc_size);
+ r300render->vbo_offset = 0;
+ r300render->vbo = pipe_buffer_create(screen,
+ 64,
+ PIPE_BUFFER_USAGE_VERTEX,
+ r300render->vbo_size);
+
+ r300render->vertex_size = vertex_size;
+
+ if (r300render->vbo) {
+ return TRUE;
+ } else {
+ return FALSE;
+ }
+}
+
+static void* r300_render_map_vertices(struct vbuf_render* render)
+{
+ struct r300_render* r300render = r300_render(render);
+ struct pipe_screen* screen = r300render->r300->context.screen;
+
+ r300render->vbo_map = pipe_buffer_map(screen, r300render->vbo,
+ PIPE_BUFFER_USAGE_CPU_WRITE);
+
+ return (unsigned char*)r300render->vbo_map + r300render->vbo_offset;
+}
+
+static void r300_render_unmap_vertices(struct vbuf_render* render,
+ ushort min,
+ ushort max)
+{
+ struct r300_render* r300render = r300_render(render);
+ struct pipe_screen* screen = r300render->r300->context.screen;
+
+ r300render->vbo_max_used = MAX2(r300render->vbo_max_used,
+ r300render->vertex_size * (max + 1));
+
+ pipe_buffer_unmap(screen, r300render->vbo);
+}
+
+static void r300_render_release_vertices(struct vbuf_render* render)
+{
+ struct r300_render* r300render = r300_render(render);
+
+ pipe_buffer_reference(&r300render->vbo, NULL);
+}
+
+static boolean r300_render_set_primitive(struct vbuf_render* render,
+ unsigned prim)
+{
+ struct r300_render* r300render = r300_render(render);
+ r300render->prim = prim;
+
+ switch (prim) {
+ case PIPE_PRIM_POINTS:
+ r300render->hwprim = R300_VAP_VF_CNTL__PRIM_POINTS;
+ break;
+ case PIPE_PRIM_LINES:
+ r300render->hwprim = R300_VAP_VF_CNTL__PRIM_LINES;
+ break;
+ case PIPE_PRIM_LINE_LOOP:
+ r300render->hwprim = R300_VAP_VF_CNTL__PRIM_LINE_LOOP;
+ break;
+ case PIPE_PRIM_LINE_STRIP:
+ r300render->hwprim = R300_VAP_VF_CNTL__PRIM_LINE_STRIP;
+ break;
+ case PIPE_PRIM_TRIANGLES:
+ r300render->hwprim = R300_VAP_VF_CNTL__PRIM_TRIANGLES;
+ break;
+ case PIPE_PRIM_TRIANGLE_STRIP:
+ r300render->hwprim = R300_VAP_VF_CNTL__PRIM_TRIANGLE_STRIP;
+ break;
+ case PIPE_PRIM_TRIANGLE_FAN:
+ r300render->hwprim = R300_VAP_VF_CNTL__PRIM_TRIANGLE_FAN;
+ break;
+ case PIPE_PRIM_QUADS:
+ r300render->hwprim = R300_VAP_VF_CNTL__PRIM_QUADS;
+ break;
+ case PIPE_PRIM_QUAD_STRIP:
+ r300render->hwprim = R300_VAP_VF_CNTL__PRIM_QUAD_STRIP;
+ break;
+ case PIPE_PRIM_POLYGON:
+ r300render->hwprim = R300_VAP_VF_CNTL__PRIM_POLYGON;
+ break;
+ default:
+ return FALSE;
+ break;
+ }
+
+ return TRUE;
+}
+
+static void prepare_render(struct r300_render* render, unsigned count)
+{
+ struct r300_context* r300 = render->r300;
+
+ CS_LOCALS(r300);
+
+ /* Make sure that all possible state is emitted. */
+ r300_emit_dirty_state(r300);
+
+ debug_printf("r300: Preparing vertex buffer %p for render, "
+ "vertex size %d, vertex count %d\n", render->vbo,
+ r300->vertex_info.vinfo.size, count);
+ /* Set the pointer to our vertex buffer. The emitted values are this:
+ * PACKET3 [3D_LOAD_VBPNTR]
+ * COUNT [1]
+ * FORMAT [size | stride << 8]
+ * OFFSET [0]
+ * VBPNTR [relocated BO]
+ */
+ BEGIN_CS(7);
+ OUT_CS_PKT3(R300_PACKET3_3D_LOAD_VBPNTR, 3);
+ OUT_CS(1);
+ OUT_CS(r300->vertex_info.vinfo.size |
+ (r300->vertex_info.vinfo.size << 8));
+ OUT_CS(render->vbo_offset);
+ OUT_CS_RELOC(render->vbo, 0, RADEON_GEM_DOMAIN_GTT, 0, 0);
+ END_CS;
+}
+
+static void r300_render_draw_arrays(struct vbuf_render* render,
+ unsigned start,
+ unsigned count)
+{
+ struct r300_render* r300render = r300_render(render);
+ struct r300_context* r300 = r300render->r300;
+
+ CS_LOCALS(r300);
+
+ r300render->vbo_offset = start;
+
+ prepare_render(r300render, count);
+
+ debug_printf("r300: Doing vbuf render, count %d\n", count);
+
+ BEGIN_CS(2);
+ OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0);
+ OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) |
+ r300render->hwprim);
+ END_CS;
+}
+
+static void r300_render_draw(struct vbuf_render* render,
+ const ushort* indices,
+ uint count)
+{
+ struct r300_render* r300render = r300_render(render);
+ struct r300_context* r300 = r300render->r300;
+ struct pipe_screen* screen = r300->context.screen;
+ struct pipe_buffer* index_buffer;
+ void* index_map;
+
+ CS_LOCALS(r300);
+
+ prepare_render(r300render, count);
+
+ /* Send our indices into an index buffer. */
+ index_buffer = pipe_buffer_create(screen, 64, PIPE_BUFFER_USAGE_VERTEX,
+ count * 2);
+ if (!index_buffer) {
+ return;
+ }
+
+ index_map = pipe_buffer_map(screen, index_buffer,
+ PIPE_BUFFER_USAGE_CPU_WRITE);
+ memcpy(index_map, indices, count);
+ pipe_buffer_unmap(screen, index_buffer);
+
+ debug_printf("r300: Doing indexbuf render, count %d\n", count);
+
+ BEGIN_CS(6);
+ OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, 0);
+ OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) |
+ r300render->hwprim);
+ OUT_CS_PKT3(R300_PACKET3_INDX_BUFFER, 2);
+ OUT_CS(R300_INDX_BUFFER_ONE_REG_WR | (R300_VAP_PORT_IDX0 >> 2));
+ OUT_CS_INDEX_RELOC(index_buffer, 0, count, RADEON_GEM_DOMAIN_GTT, 0, 0);
+ END_CS;
+}
+
+static void r300_render_destroy(struct vbuf_render* render)
+{
+ FREE(render);
+}
+
+static struct vbuf_render* r300_render_create(struct r300_context* r300)
+{
+ struct r300_render* r300render = CALLOC_STRUCT(r300_render);
+
+ r300render->r300 = r300;
+
+ /* XXX find real numbers plz */
+ r300render->base.max_vertex_buffer_bytes = 128 * 1024;
+ r300render->base.max_indices = 16 * 1024;
+
+ r300render->base.get_vertex_info = r300_render_get_vertex_info;
+ r300render->base.allocate_vertices = r300_render_allocate_vertices;
+ r300render->base.map_vertices = r300_render_map_vertices;
+ r300render->base.unmap_vertices = r300_render_unmap_vertices;
+ r300render->base.set_primitive = r300_render_set_primitive;
+ r300render->base.draw = r300_render_draw;
+ r300render->base.draw_arrays = r300_render_draw_arrays;
+ r300render->base.release_vertices = r300_render_release_vertices;
+ r300render->base.destroy = r300_render_destroy;
+
+ return &r300render->base;
+}
+
+struct draw_stage* r300_draw_stage(struct r300_context* r300)
+{
+ struct vbuf_render* render;
+ struct draw_stage* stage;
+
+ render = r300_render_create(r300);
+
+ if (!render) {
+ return NULL;
+ }
+
+ stage = draw_vbuf_stage(r300->draw, render);
+
+ if (!stage) {
+ render->destroy(render);
+ return NULL;
+ }
+
+ draw_set_render(r300->draw, render);
+
+ return stage;
+}