* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE. */
+/* r300_render: Vertex and index buffer primitive emission. Contains both
+ * HW TCL fastpath rendering, and SW TCL Draw-assisted rendering. */
+
#include "draw/draw_context.h"
#include "draw/draw_vbuf.h"
#include "pipe/p_inlines.h"
#include "util/u_memory.h"
+#include "util/u_prim.h"
#include "r300_cs.h"
#include "r300_context.h"
/* r300_render: Vertex and index buffer primitive emission. */
#define R300_MAX_VBO_SIZE (1024 * 1024)
-static uint32_t r300_translate_primitive(unsigned prim)
+uint32_t r300_translate_primitive(unsigned prim)
{
switch (prim) {
case PIPE_PRIM_POINTS:
}
}
+static uint32_t r300_provoking_vertex_fixes(struct r300_context *r300,
+ unsigned mode)
+{
+ struct r300_rs_state* rs = (struct r300_rs_state*)r300->rs_state.state;
+ uint32_t color_control = rs->color_control;
+
+ /* By default (see r300_state.c:r300_create_rs_state) color_control is
+ * initialized to provoking the first vertex.
+ *
+ * Triangle fans must be reduced to the second vertex, not the first, in
+ * Gallium flatshade-first mode, as per the GL spec.
+ * (http://www.opengl.org/registry/specs/ARB/provoking_vertex.txt)
+ *
+ * Quads never provoke correctly in flatshade-first mode. The first
+ * vertex is never considered as provoking, so only the second, third,
+ * and fourth vertices can be selected, and both "third" and "last" modes
+ * select the fourth vertex. This is probably due to D3D lacking quads.
+ *
+ * Similarly, polygons reduce to the first, not the last, vertex, when in
+ * "last" mode, and all other modes start from the second vertex.
+ *
+ * ~ C.
+ */
+
+ if (rs->rs.flatshade_first) {
+ switch (mode) {
+ case PIPE_PRIM_TRIANGLE_FAN:
+ color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_SECOND;
+ break;
+ case PIPE_PRIM_QUADS:
+ case PIPE_PRIM_QUAD_STRIP:
+ case PIPE_PRIM_POLYGON:
+ color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST;
+ break;
+ default:
+ color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_FIRST;
+ break;
+ }
+ } else {
+ color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST;
+ }
+
+ return color_control;
+}
+
+static void r300_emit_draw_arrays(struct r300_context *r300,
+ unsigned mode,
+ unsigned count)
+{
+ CS_LOCALS(r300);
+
+ BEGIN_CS(8);
+ OUT_CS_REG(R300_GA_COLOR_CONTROL,
+ r300_provoking_vertex_fixes(r300, mode));
+ OUT_CS_REG(R300_VAP_VF_MIN_VTX_INDX, 0);
+ OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, count - 1);
+ OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0);
+ OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) |
+ r300_translate_primitive(mode));
+ END_CS;
+}
+
+static void r300_emit_draw_elements(struct r300_context *r300,
+ struct pipe_buffer* indexBuffer,
+ unsigned indexSize,
+ unsigned minIndex,
+ unsigned maxIndex,
+ unsigned mode,
+ unsigned start,
+ unsigned count)
+{
+ uint32_t count_dwords;
+ uint32_t offset_dwords = indexSize * start / sizeof(uint32_t);
+ CS_LOCALS(r300);
+
+ /* XXX most of these are stupid */
+ assert(indexSize == 4 || indexSize == 2);
+ assert((start * indexSize) % 4 == 0);
+ assert(offset_dwords == 0);
+
+ BEGIN_CS(14);
+ OUT_CS_REG(R300_GA_COLOR_CONTROL,
+ r300_provoking_vertex_fixes(r300, mode));
+ OUT_CS_REG(R300_VAP_VF_MIN_VTX_INDX, minIndex);
+ OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, maxIndex);
+ OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, 0);
+ if (indexSize == 4) {
+ count_dwords = count + start;
+ OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) |
+ R300_VAP_VF_CNTL__INDEX_SIZE_32bit |
+ r300_translate_primitive(mode));
+ } else {
+ count_dwords = (count + start + 1) / 2;
+ OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) |
+ r300_translate_primitive(mode));
+ }
+
+ /* INDX_BUFFER is a truly special packet3.
+ * Unlike most other packet3, where the offset is after the count,
+ * the order is reversed, so the relocation ends up carrying the
+ * size of the indexbuf instead of the offset.
+ *
+ * XXX Fix offset
+ */
+ OUT_CS_PKT3(R300_PACKET3_INDX_BUFFER, 2);
+ OUT_CS(R300_INDX_BUFFER_ONE_REG_WR | (R300_VAP_PORT_IDX0 >> 2) |
+ (0 << R300_INDX_BUFFER_SKIP_SHIFT));
+ OUT_CS(offset_dwords);
+ OUT_CS_RELOC(indexBuffer, count_dwords,
+ RADEON_GEM_DOMAIN_GTT, 0, 0);
+
+ END_CS;
+}
+
+
+static boolean r300_setup_vertex_buffers(struct r300_context *r300)
+{
+ struct pipe_vertex_buffer *vbuf = r300->vertex_buffer;
+ struct pipe_vertex_element *velem = r300->vertex_element;
+
+validate:
+ for (int i = 0; i < r300->vertex_element_count; i++) {
+ if (!r300->winsys->add_buffer(r300->winsys,
+ vbuf[velem[i].vertex_buffer_index].buffer,
+ RADEON_GEM_DOMAIN_GTT, 0)) {
+ r300->context.flush(&r300->context, 0, NULL);
+ goto validate;
+ }
+ }
+
+ if (!r300->winsys->validate(r300->winsys)) {
+ r300->context.flush(&r300->context, 0, NULL);
+ return r300->winsys->validate(r300->winsys);
+ }
+
+ return TRUE;
+}
+
/* This is the fast-path drawing & emission for HW TCL. */
-boolean r300_draw_range_elements(struct pipe_context* pipe,
+void r300_draw_range_elements(struct pipe_context* pipe,
struct pipe_buffer* indexBuffer,
unsigned indexSize,
unsigned minIndex,
unsigned count)
{
struct r300_context* r300 = r300_context(pipe);
- uint32_t prim = r300_translate_primitive(mode);
- struct pipe_vertex_buffer* aos = r300->vertex_buffers;
- unsigned aos_count = r300->vertex_buffer_count;
- short* indices;
- unsigned packet_size;
- unsigned i;
- bool invalid = FALSE;
-
- CS_LOCALS(r300);
-validate:
- for (i = 0; i < aos_count; i++) {
- if (!r300->winsys->add_buffer(r300->winsys, aos[i].buffer,
- RADEON_GEM_DOMAIN_GTT, 0)) {
- pipe->flush(pipe, 0, NULL);
- goto validate;
- }
+ if (!u_trim_pipe_prim(mode, &count)) {
+ return;
}
- if (!r300->winsys->validate(r300->winsys)) {
- pipe->flush(pipe, 0, NULL);
- if (invalid) {
- /* Well, hell. */
- debug_printf("r300: Stuck in validation loop, gonna quit now.");
- exit(1);
- }
- invalid = TRUE;
- goto validate;
+
+ if (count > 65535) {
+ /* XXX: use aux/indices functions to split this into smaller
+ * primitives.
+ */
+ return;
}
- r300_emit_dirty_state(r300);
+ r300_update_derived_state(r300);
- packet_size = (aos_count >> 1) * 3 + (aos_count & 1) * 2;
-
- BEGIN_CS(3 + packet_size + (aos_count * 2));
- OUT_CS_PKT3(R300_PACKET3_3D_LOAD_VBPNTR, packet_size);
- OUT_CS(aos_count);
- for (i = 0; i < aos_count - 1; i += 2) {
- OUT_CS(aos[i].stride |
- (aos[i].stride << 8) |
- (aos[i + 1].stride << 16) |
- (aos[i + 1].stride << 24));
- OUT_CS(aos[i].buffer_offset + start * 4 * aos[i].stride);
- OUT_CS(aos[i + 1].buffer_offset + start * 4 * aos[i + 1].stride);
+ if (!r300_setup_vertex_buffers(r300)) {
+ return;
}
- if (aos_count & 1) {
- OUT_CS(aos[i].stride | (aos[i].stride << 8));
- OUT_CS(aos[i].buffer_offset + start * 4 * aos[i].stride);
- }
- for (i = 0; i < aos_count; i++) {
- OUT_CS_RELOC(aos[i].buffer, 0, RADEON_GEM_DOMAIN_GTT, 0, 0);
+
+ if (!r300->winsys->add_buffer(r300->winsys, indexBuffer,
+ RADEON_GEM_DOMAIN_GTT, 0)) {
+ return;
}
- END_CS;
- if (indexBuffer) {
- indices = (short*)pipe_buffer_map(pipe->screen, indexBuffer,
- PIPE_BUFFER_USAGE_CPU_READ);
+ if (!r300->winsys->validate(r300->winsys)) {
+ return;
+ }
- /* Set the starting point. */
- indices += start;
+ r300_emit_dirty_state(r300);
- BEGIN_CS(2 + (count+1)/2);
- OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, (count + 1)/2);
- OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) | prim);
- for (i = 0; i < count - 1; i += 2) {
- OUT_CS(indices[i + 1] << 16 | indices[i]);
- }
- if (count % 2) {
- OUT_CS(indices[count - 1]);
- }
- END_CS;
- } else {
- 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) |
- prim);
- END_CS;
- }
+ r300_emit_aos(r300, 0);
- return TRUE;
+ r300_emit_draw_elements(r300, indexBuffer, indexSize, minIndex, maxIndex,
+ mode, start, count);
}
/* Simple helpers for context setup. Should probably be moved to util. */
-boolean r300_draw_elements(struct pipe_context* pipe,
- struct pipe_buffer* indexBuffer,
- unsigned indexSize, unsigned mode,
- unsigned start, unsigned count)
+void r300_draw_elements(struct pipe_context* pipe,
+ struct pipe_buffer* indexBuffer,
+ unsigned indexSize, unsigned mode,
+ unsigned start, unsigned count)
{
- return pipe->draw_range_elements(pipe, indexBuffer, indexSize, 0, ~0,
- mode, start, count);
+ pipe->draw_range_elements(pipe, indexBuffer, indexSize, 0, ~0,
+ mode, start, count);
}
-boolean r300_draw_arrays(struct pipe_context* pipe, unsigned mode,
+void r300_draw_arrays(struct pipe_context* pipe, unsigned mode,
unsigned start, unsigned count)
{
- return pipe->draw_elements(pipe, NULL, 0, mode, start, count);
+ struct r300_context* r300 = r300_context(pipe);
+
+ if (!u_trim_pipe_prim(mode, &count)) {
+ return;
+ }
+
+ if (count > 65535) {
+ /* XXX: driver needs to handle this -- use the functions in
+ * aux/indices to split this into several smaller primitives.
+ */
+ return;
+ }
+
+ r300_update_derived_state(r300);
+
+ if (!r300_setup_vertex_buffers(r300)) {
+ return;
+ }
+
+ r300_emit_dirty_state(r300);
+
+ r300_emit_aos(r300, start);
+
+ r300_emit_draw_arrays(r300, mode, count);
}
/****************************************************************************
* keep these functions separated so that they are easier to locate. ~C. *
***************************************************************************/
-/* Draw-based drawing for SW TCL chipsets. */
-boolean r300_swtcl_draw_range_elements(struct pipe_context* pipe,
+/* SW TCL arrays, using Draw. */
+void r300_swtcl_draw_arrays(struct pipe_context* pipe,
+ unsigned mode,
+ unsigned start,
+ unsigned count)
+{
+ struct r300_context* r300 = r300_context(pipe);
+ int i;
+
+ if (!u_trim_pipe_prim(mode, &count)) {
+ return;
+ }
+
+ for (i = 0; i < r300->vertex_buffer_count; i++) {
+ void* buf = pipe_buffer_map(pipe->screen,
+ r300->vertex_buffer[i].buffer,
+ PIPE_BUFFER_USAGE_CPU_READ);
+ draw_set_mapped_vertex_buffer(r300->draw, i, buf);
+ }
+
+ draw_set_mapped_element_buffer(r300->draw, 0, NULL);
+
+ draw_set_mapped_constant_buffer(r300->draw,
+ PIPE_SHADER_VERTEX,
+ r300->shader_constants[PIPE_SHADER_VERTEX].constants,
+ r300->shader_constants[PIPE_SHADER_VERTEX].count *
+ (sizeof(float) * 4));
+
+ draw_arrays(r300->draw, mode, start, count);
+
+ for (i = 0; i < r300->vertex_buffer_count; i++) {
+ pipe_buffer_unmap(pipe->screen, r300->vertex_buffer[i].buffer);
+ draw_set_mapped_vertex_buffer(r300->draw, i, NULL);
+ }
+}
+
+/* SW TCL elements, using Draw. */
+void r300_swtcl_draw_range_elements(struct pipe_context* pipe,
struct pipe_buffer* indexBuffer,
unsigned indexSize,
unsigned minIndex,
{
struct r300_context* r300 = r300_context(pipe);
int i;
+ void* indices;
+
+ if (!u_trim_pipe_prim(mode, &count)) {
+ return;
+ }
for (i = 0; i < r300->vertex_buffer_count; i++) {
void* buf = pipe_buffer_map(pipe->screen,
- r300->vertex_buffers[i].buffer,
+ r300->vertex_buffer[i].buffer,
PIPE_BUFFER_USAGE_CPU_READ);
draw_set_mapped_vertex_buffer(r300->draw, i, buf);
}
- if (indexBuffer) {
- void* indices = pipe_buffer_map(pipe->screen, indexBuffer,
- PIPE_BUFFER_USAGE_CPU_READ);
- draw_set_mapped_element_buffer_range(r300->draw, indexSize,
- minIndex, maxIndex, indices);
- } else {
- draw_set_mapped_element_buffer(r300->draw, 0, NULL);
- }
+ indices = pipe_buffer_map(pipe->screen, indexBuffer,
+ PIPE_BUFFER_USAGE_CPU_READ);
+ draw_set_mapped_element_buffer_range(r300->draw, indexSize,
+ minIndex, maxIndex, indices);
draw_set_mapped_constant_buffer(r300->draw,
+ PIPE_SHADER_VERTEX,
r300->shader_constants[PIPE_SHADER_VERTEX].constants,
r300->shader_constants[PIPE_SHADER_VERTEX].count *
(sizeof(float) * 4));
draw_arrays(r300->draw, mode, start, count);
for (i = 0; i < r300->vertex_buffer_count; i++) {
- pipe_buffer_unmap(pipe->screen, r300->vertex_buffers[i].buffer);
+ pipe_buffer_unmap(pipe->screen, r300->vertex_buffer[i].buffer);
draw_set_mapped_vertex_buffer(r300->draw, i, NULL);
}
- if (indexBuffer) {
- pipe_buffer_unmap(pipe->screen, indexBuffer);
- draw_set_mapped_element_buffer_range(r300->draw, 0, start,
- start + count - 1, NULL);
- }
-
- return TRUE;
+ pipe_buffer_unmap(pipe->screen, indexBuffer);
+ draw_set_mapped_element_buffer_range(r300->draw, 0, start,
+ start + count - 1, NULL);
}
/* Object for rendering using Draw. */
r300render->vbo_ptr = pipe_buffer_map(screen, r300render->vbo,
PIPE_BUFFER_USAGE_CPU_WRITE);
- return (r300render->vbo_ptr + r300render->vbo_offset);
+ return ((uint8_t*)r300render->vbo_ptr + r300render->vbo_offset);
}
static void r300_render_unmap_vertices(struct vbuf_render* render,
projects / mesa.git / blobdiff