diff options
Diffstat (limited to 'src/gallium/drivers/i915/i915_context.c')
| -rw-r--r-- | src/gallium/drivers/i915/i915_context.c | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/src/gallium/drivers/i915/i915_context.c b/src/gallium/drivers/i915/i915_context.c new file mode 100644 index 0000000000..2af9bdac95 --- /dev/null +++ b/src/gallium/drivers/i915/i915_context.c @@ -0,0 +1,202 @@ +/************************************************************************** + * + * 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_surface.h" +#include "i915_batch.h" +#include "i915_resource.h" + +#include "draw/draw_context.h" +#include "pipe/p_defines.h" +#include "util/u_inlines.h" +#include "util/u_memory.h" +#include "pipe/p_screen.h" + + +/* + * Draw functions + */ + + +static void +i915_draw_range_elements(struct pipe_context *pipe, + struct pipe_resource *indexBuffer, + unsigned indexSize, + int indexBias, + 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 = i915_buffer(i915->vertex_buffer[i].buffer)->data; + draw_set_mapped_vertex_buffer(draw, i, buf); + } + + /* + * Map index buffer, if present + */ + if (indexBuffer) { + void *mapped_indexes = i915_buffer(indexBuffer)->data; + draw_set_mapped_element_buffer_range(draw, indexSize, indexBias, + min_index, + max_index, + mapped_indexes); + } else { + draw_set_mapped_element_buffer(draw, 0, 0, NULL); + } + + + draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 0, + 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++) { + draw_set_mapped_vertex_buffer(draw, i, NULL); + } + + if (indexBuffer) { + draw_set_mapped_element_buffer(draw, 0, 0, NULL); + } +} + +static void +i915_draw_elements(struct pipe_context *pipe, + struct pipe_resource *indexBuffer, + unsigned indexSize, int indexBias, + unsigned prim, unsigned start, unsigned count) +{ + i915_draw_range_elements(pipe, indexBuffer, + indexSize, indexBias, + 0, 0xffffffff, + prim, start, count); +} + +static void +i915_draw_arrays(struct pipe_context *pipe, + unsigned prim, unsigned start, unsigned count) +{ + i915_draw_elements(pipe, NULL, 0, 0, prim, start, count); +} + + + + +/* + * 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, void *priv) +{ + 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.priv = priv; + + 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; + + /* + * Create drawing context and plug our rendering stage into it. + */ + i915->draw = draw_create(&i915->base); + 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); + i915_init_resource_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; +} |