| /************************************************************************** |
| * |
| * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. |
| * All Rights Reserved. |
| * |
| * 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 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 TUNGSTEN GRAPHICS AND/OR ITS 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 "i915_context.h" |
| #include "i915_state.h" |
| #include "i915_screen.h" |
| #include "i915_batch.h" |
| #include "i915_texture.h" |
| #include "i915_reg.h" |
| |
| #include "draw/draw_context.h" |
| #include "pipe/p_defines.h" |
| #include "pipe/internal/p_winsys_screen.h" |
| #include "pipe/p_inlines.h" |
| #include "util/u_memory.h" |
| #include "pipe/p_screen.h" |
| |
| |
| /* |
| * Draw functions |
| */ |
| |
| |
| static boolean |
| i915_draw_range_elements(struct pipe_context *pipe, |
| struct pipe_buffer *indexBuffer, |
| unsigned indexSize, |
| unsigned min_index, |
| unsigned max_index, |
| unsigned prim, unsigned start, unsigned count) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| struct draw_context *draw = i915->draw; |
| unsigned i; |
| |
| if (i915->dirty) |
| i915_update_derived(i915); |
| |
| /* |
| * Map vertex buffers |
| */ |
| for (i = 0; i < i915->num_vertex_buffers; i++) { |
| void *buf = pipe_buffer_map(pipe->screen, i915->vertex_buffer[i].buffer, |
| PIPE_BUFFER_USAGE_CPU_READ); |
| draw_set_mapped_vertex_buffer(draw, i, buf); |
| } |
| |
| /* |
| * Map index buffer, if present |
| */ |
| if (indexBuffer) { |
| void *mapped_indexes = pipe_buffer_map(pipe->screen, indexBuffer, |
| PIPE_BUFFER_USAGE_CPU_READ); |
| draw_set_mapped_element_buffer_range(draw, indexSize, |
| min_index, |
| max_index, |
| mapped_indexes); |
| } else { |
| draw_set_mapped_element_buffer(draw, 0, NULL); |
| } |
| |
| |
| draw_set_mapped_constant_buffer(draw, |
| i915->current.constants[PIPE_SHADER_VERTEX], |
| (i915->current.num_user_constants[PIPE_SHADER_VERTEX] * |
| 4 * sizeof(float))); |
| |
| /* |
| * Do the drawing |
| */ |
| draw_arrays(i915->draw, prim, start, count); |
| |
| /* |
| * unmap vertex/index buffers |
| */ |
| for (i = 0; i < i915->num_vertex_buffers; i++) { |
| pipe_buffer_unmap(pipe->screen, i915->vertex_buffer[i].buffer); |
| draw_set_mapped_vertex_buffer(draw, i, NULL); |
| } |
| |
| if (indexBuffer) { |
| pipe_buffer_unmap(pipe->screen, indexBuffer); |
| draw_set_mapped_element_buffer_range(draw, 0, start, start + count - 1, NULL); |
| } |
| |
| return TRUE; |
| } |
| |
| static boolean |
| i915_draw_elements(struct pipe_context *pipe, |
| struct pipe_buffer *indexBuffer, |
| unsigned indexSize, |
| unsigned prim, unsigned start, unsigned count) |
| { |
| return i915_draw_range_elements(pipe, indexBuffer, |
| indexSize, |
| 0, 0xffffffff, |
| prim, start, count); |
| } |
| |
| static boolean |
| i915_draw_arrays(struct pipe_context *pipe, |
| unsigned prim, unsigned start, unsigned count) |
| { |
| return i915_draw_elements(pipe, NULL, 0, prim, start, count); |
| } |
| |
| |
| /* |
| * Is referenced functions |
| */ |
| |
| |
| static unsigned int |
| i915_is_texture_referenced(struct pipe_context *pipe, |
| struct pipe_texture *texture, |
| unsigned face, unsigned level) |
| { |
| /** |
| * FIXME: Return the corrent result. We can't alays return referenced |
| * since it causes a double flush within the vbo module. |
| */ |
| #if 0 |
| return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE; |
| #else |
| return 0; |
| #endif |
| } |
| |
| static unsigned int |
| i915_is_buffer_referenced(struct pipe_context *pipe, |
| struct pipe_buffer *buf) |
| { |
| /** |
| * FIXME: Return the corrent result. We can't alays return referenced |
| * since it causes a double flush within the vbo module. |
| */ |
| #if 0 |
| return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE; |
| #else |
| return 0; |
| #endif |
| } |
| |
| |
| /* |
| * Generic context functions |
| */ |
| |
| |
| static void i915_destroy(struct pipe_context *pipe) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| int i; |
| |
| draw_destroy(i915->draw); |
| |
| if(i915->batch) |
| i915->iws->batchbuffer_destroy(i915->batch); |
| |
| /* unbind framebuffer */ |
| for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { |
| pipe_surface_reference(&i915->framebuffer.cbufs[i], NULL); |
| } |
| pipe_surface_reference(&i915->framebuffer.zsbuf, NULL); |
| |
| FREE(i915); |
| } |
| |
| struct pipe_context * |
| i915_create_context(struct pipe_screen *screen) |
| { |
| struct i915_context *i915; |
| |
| i915 = CALLOC_STRUCT(i915_context); |
| if (i915 == NULL) |
| return NULL; |
| |
| i915->iws = i915_screen(screen)->iws; |
| i915->base.winsys = NULL; |
| i915->base.screen = screen; |
| |
| i915->base.destroy = i915_destroy; |
| |
| i915->base.clear = i915_clear; |
| |
| i915->base.draw_arrays = i915_draw_arrays; |
| i915->base.draw_elements = i915_draw_elements; |
| i915->base.draw_range_elements = i915_draw_range_elements; |
| |
| i915->base.is_texture_referenced = i915_is_texture_referenced; |
| i915->base.is_buffer_referenced = i915_is_buffer_referenced; |
| |
| /* |
| * Create drawing context and plug our rendering stage into it. |
| */ |
| i915->draw = draw_create(); |
| assert(i915->draw); |
| if (!debug_get_bool_option("I915_NO_VBUF", FALSE)) { |
| draw_set_rasterize_stage(i915->draw, i915_draw_vbuf_stage(i915)); |
| } else { |
| draw_set_rasterize_stage(i915->draw, i915_draw_render_stage(i915)); |
| } |
| |
| i915_init_surface_functions(i915); |
| i915_init_state_functions(i915); |
| i915_init_flush_functions(i915); |
| |
| draw_install_aaline_stage(i915->draw, &i915->base); |
| draw_install_aapoint_stage(i915->draw, &i915->base); |
| |
| i915->dirty = ~0; |
| i915->hardware_dirty = ~0; |
| |
| /* Batch stream debugging is a bit hacked up at the moment: |
| */ |
| i915->batch = i915->iws->batchbuffer_create(i915->iws); |
| |
| return &i915->base; |
| } |