1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "i915_context.h"
29 #include "i915_state.h"
30 #include "i915_screen.h"
31 #include "i915_surface.h"
32 #include "i915_batch.h"
33 #include "i915_resource.h"
35 #include "draw/draw_context.h"
36 #include "pipe/p_defines.h"
37 #include "util/u_inlines.h"
38 #include "util/u_memory.h"
39 #include "pipe/p_screen.h"
48 i915_draw_range_elements(struct pipe_context *pipe,
49 struct pipe_resource *indexBuffer,
53 unsigned prim, unsigned start, unsigned count)
55 struct i915_context *i915 = i915_context(pipe);
56 struct draw_context *draw = i915->draw;
60 i915_update_derived(i915);
65 for (i = 0; i < i915->num_vertex_buffers; i++) {
66 void *buf = i915_buffer(i915->vertex_buffer[i].buffer)->data;
67 draw_set_mapped_vertex_buffer(draw, i, buf);
71 * Map index buffer, if present
74 void *mapped_indexes = i915_buffer(indexBuffer)->data;
75 draw_set_mapped_element_buffer_range(draw, indexSize,
80 draw_set_mapped_element_buffer(draw, 0, NULL);
84 draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 0,
85 i915->current.constants[PIPE_SHADER_VERTEX],
86 (i915->current.num_user_constants[PIPE_SHADER_VERTEX] *
92 draw_arrays(i915->draw, prim, start, count);
95 * unmap vertex/index buffers
97 for (i = 0; i < i915->num_vertex_buffers; i++) {
98 draw_set_mapped_vertex_buffer(draw, i, NULL);
102 draw_set_mapped_element_buffer(draw, 0, NULL);
107 i915_draw_elements(struct pipe_context *pipe,
108 struct pipe_resource *indexBuffer,
110 unsigned prim, unsigned start, unsigned count)
112 i915_draw_range_elements(pipe, indexBuffer,
119 i915_draw_arrays(struct pipe_context *pipe,
120 unsigned prim, unsigned start, unsigned count)
122 i915_draw_elements(pipe, NULL, 0, prim, start, count);
129 * Generic context functions
133 static void i915_destroy(struct pipe_context *pipe)
135 struct i915_context *i915 = i915_context(pipe);
138 draw_destroy(i915->draw);
141 i915->iws->batchbuffer_destroy(i915->batch);
143 /* unbind framebuffer */
144 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
145 pipe_surface_reference(&i915->framebuffer.cbufs[i], NULL);
147 pipe_surface_reference(&i915->framebuffer.zsbuf, NULL);
152 struct pipe_context *
153 i915_create_context(struct pipe_screen *screen, void *priv)
155 struct i915_context *i915;
157 i915 = CALLOC_STRUCT(i915_context);
161 i915->iws = i915_screen(screen)->iws;
162 i915->base.winsys = NULL;
163 i915->base.screen = screen;
164 i915->base.priv = priv;
166 i915->base.destroy = i915_destroy;
168 i915->base.clear = i915_clear;
170 i915->base.draw_arrays = i915_draw_arrays;
171 i915->base.draw_elements = i915_draw_elements;
172 i915->base.draw_range_elements = i915_draw_range_elements;
175 * Create drawing context and plug our rendering stage into it.
177 i915->draw = draw_create();
179 if (!debug_get_bool_option("I915_NO_VBUF", FALSE)) {
180 draw_set_rasterize_stage(i915->draw, i915_draw_vbuf_stage(i915));
182 draw_set_rasterize_stage(i915->draw, i915_draw_render_stage(i915));
185 i915_init_surface_functions(i915);
186 i915_init_state_functions(i915);
187 i915_init_flush_functions(i915);
188 i915_init_resource_functions(i915);
190 draw_install_aaline_stage(i915->draw, &i915->base);
191 draw_install_aapoint_stage(i915->draw, &i915->base);
194 i915->hardware_dirty = ~0;
196 /* Batch stream debugging is a bit hacked up at the moment:
198 i915->batch = i915->iws->batchbuffer_create(i915->iws);