diff options
Diffstat (limited to 'src/gallium/drivers/i915simple/i915_context.c')
| -rw-r--r-- | src/gallium/drivers/i915simple/i915_context.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/src/gallium/drivers/i915simple/i915_context.c b/src/gallium/drivers/i915simple/i915_context.c new file mode 100644 index 0000000000..c6776716a2 --- /dev/null +++ b/src/gallium/drivers/i915simple/i915_context.c @@ -0,0 +1,192 @@ +/************************************************************************** + * + * 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_winsys.h" +#include "i915_state.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/p_winsys.h" +#include "util/u_memory.h" +#include "pipe/p_screen.h" + + +static void i915_destroy( struct pipe_context *pipe ) +{ + struct i915_context *i915 = i915_context( pipe ); + + draw_destroy( i915->draw ); + + if(i915->winsys->destroy) + i915->winsys->destroy(i915->winsys); + + FREE( i915 ); +} + + +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->winsys->buffer_map(pipe->winsys, + 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->winsys->buffer_map(pipe->winsys, indexBuffer, + PIPE_BUFFER_USAGE_CPU_READ); + draw_set_mapped_element_buffer_range(draw, indexSize, + min_index, + max_index, + mapped_indexes); + } + else { + /* no index/element buffer */ + 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) )); + + /* draw! */ + draw_arrays(i915->draw, prim, start, count); + + /* + * unmap vertex/index buffers + */ + for (i = 0; i < i915->num_vertex_buffers; i++) { + pipe->winsys->buffer_unmap(pipe->winsys, i915->vertex_buffer[i].buffer); + draw_set_mapped_vertex_buffer(draw, i, NULL); + } + if (indexBuffer) { + pipe->winsys->buffer_unmap(pipe->winsys, 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); +} + + + +struct pipe_context *i915_create_context( struct pipe_screen *screen, + struct pipe_winsys *pipe_winsys, + struct i915_winsys *i915_winsys ) +{ + struct i915_context *i915; + + i915 = CALLOC_STRUCT(i915_context); + if (i915 == NULL) + return NULL; + + i915->winsys = i915_winsys; + i915->pipe.winsys = pipe_winsys; + i915->pipe.screen = screen; + + i915->pipe.destroy = i915_destroy; + + i915->pipe.clear = i915_clear; + + + i915->pipe.draw_arrays = i915_draw_arrays; + i915->pipe.draw_elements = i915_draw_elements; + i915->pipe.draw_range_elements = i915_draw_range_elements; + + /* + * 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); + i915_init_texture_functions(i915); + + draw_install_aaline_stage(i915->draw, &i915->pipe); + draw_install_aapoint_stage(i915->draw, &i915->pipe); + + i915->dirty = ~0; + i915->hardware_dirty = ~0; + + /* Batch stream debugging is a bit hacked up at the moment: + */ + i915->batch = i915_winsys->batch_get(i915_winsys); + i915->batch->winsys = i915_winsys; + + return &i915->pipe; +} + |