/************************************************************************** * * 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) { /* * Since we never expose hardware buffers to the state tracker * they can never be referenced, so this isn't a lie */ return 0; } /* * 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; }