diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_context.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_context.c | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_context.c b/src/gallium/drivers/r300/r300_context.c new file mode 100644 index 0000000000..9cc455135d --- /dev/null +++ b/src/gallium/drivers/r300/r300_context.c @@ -0,0 +1,197 @@ +/* + * Copyright 2008 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 "r300_context.h" + +#include "r300_flush.h" +#include "r300_state_invariant.h" + +static boolean r300_draw_range_elements(struct pipe_context* pipe, + struct pipe_buffer* indexBuffer, + unsigned indexSize, + unsigned minIndex, + unsigned maxIndex, + unsigned mode, + unsigned start, + unsigned count) +{ + struct r300_context* r300 = r300_context(pipe); + int i; + + for (i = 0; i < r300->vertex_buffer_count; i++) { + void* buf = pipe_buffer_map(pipe->screen, + r300->vertex_buffers[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); + } + + draw_set_mapped_constant_buffer(r300->draw, + 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); + 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; +} + +static boolean r300_draw_elements(struct pipe_context* pipe, + struct pipe_buffer* indexBuffer, + unsigned indexSize, unsigned mode, + unsigned start, unsigned count) +{ + return r300_draw_range_elements(pipe, indexBuffer, indexSize, 0, ~0, + mode, start, count); +} + +static boolean r300_draw_arrays(struct pipe_context* pipe, unsigned mode, + unsigned start, unsigned count) +{ + return r300_draw_elements(pipe, NULL, 0, mode, start, count); +} + +static void r300_destroy_context(struct pipe_context* context) { + struct r300_context* r300 = r300_context(context); + struct r300_query* query, * temp; + + draw_destroy(r300->draw); + + /* Free the OQ BO. */ + context->screen->buffer_destroy(r300->oqbo); + + /* If there are any queries pending or not destroyed, remove them now. */ + if (r300->query_list) { + foreach_s(query, temp, r300->query_list) { + remove_from_list(query); + FREE(query); + } + } + + FREE(r300->blend_color_state); + FREE(r300->rs_block); + FREE(r300->scissor_state); + FREE(r300->viewport_state); + FREE(r300); +} + +static unsigned int +r300_is_texture_referenced( struct pipe_context *pipe, + struct pipe_texture *texture, + unsigned face, unsigned level) +{ + /** + * FIXME: Optimize. + */ + + return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE; +} + +static unsigned int +r300_is_buffer_referenced( struct pipe_context *pipe, + struct pipe_buffer *buf) +{ + /** + * FIXME: Optimize. + */ + + return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE; +} + +struct pipe_context* r300_create_context(struct pipe_screen* screen, + struct r300_winsys* r300_winsys) +{ + struct r300_context* r300 = CALLOC_STRUCT(r300_context); + + if (!r300) + return NULL; + + r300->winsys = r300_winsys; + + r300->context.winsys = (struct pipe_winsys*)r300_winsys; + r300->context.screen = r300_screen(screen); + + r300_init_debug(r300); + + r300->context.destroy = r300_destroy_context; + + r300->context.clear = r300_clear; + + r300->context.draw_arrays = r300_draw_arrays; + r300->context.draw_elements = r300_draw_elements; + r300->context.draw_range_elements = r300_draw_range_elements; + + r300->context.is_texture_referenced = r300_is_texture_referenced; + r300->context.is_buffer_referenced = r300_is_buffer_referenced; + + r300->blend_color_state = CALLOC_STRUCT(r300_blend_color_state); + r300->rs_block = CALLOC_STRUCT(r300_rs_block); + r300->scissor_state = CALLOC_STRUCT(r300_scissor_state); + r300->viewport_state = CALLOC_STRUCT(r300_viewport_state); + + /* Create a Draw. This is used for vert collation and SW TCL. */ + r300->draw = draw_create(); + /* Enable our renderer. */ + draw_set_rasterize_stage(r300->draw, r300_draw_stage(r300)); + /* Disable Draw's clipping if TCL is present. */ + draw_set_driver_clipping(r300->draw, r300_screen(screen)->caps->has_tcl); + /* Force Draw to never do viewport transform, since (again) we can do + * transform in hardware, always. */ + draw_set_viewport_state(r300->draw, &r300_viewport_identity); + + /* Open up the OQ BO. */ + r300->oqbo = screen->buffer_create(screen, 4096, + PIPE_BUFFER_USAGE_VERTEX, 4096); + + r300_init_flush_functions(r300); + + r300_init_query_functions(r300); + + r300_init_surface_functions(r300); + + r300_init_state_functions(r300); + + r300_emit_invariant_state(r300); + r300->dirty_state = R300_NEW_KITCHEN_SINK; + r300->dirty_hw++; + + return &r300->context; +} |