src/gallium/drivers/i915/i915_context.c - third_party/mesa - Git at Google

 /**************************************************************************
  *
  * Copyright 2003 VMware, Inc.
  * 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 VMWARE 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_query.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 "util/u_prim.h"
 #include "util/u_upload_mgr.h"
 #include "pipe/p_screen.h"


 DEBUG_GET_ONCE_BOOL_OPTION(i915_no_vbuf, "I915_NO_VBUF", FALSE)


 /*
  * Draw functions
  */


 static void
 i915_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
 {
    struct i915_context *i915 = i915_context(pipe);
    struct draw_context *draw = i915->draw;
    const void *mapped_indices = NULL;
    unsigned i;

    if (!u_trim_pipe_prim(info->mode, (unsigned*)&info->count))
       return;

    /*
     * Ack vs contants here, helps ipers a lot.
     */
    i915->dirty &= ~I915_NEW_VS_CONSTANTS;

    if (i915->dirty)
       i915_update_derived(i915);

    /*
     * Map vertex buffers
     */
    for (i = 0; i < i915->nr_vertex_buffers; i++) {
       const void *buf = i915->vertex_buffers[i].is_user_buffer ?
                            i915->vertex_buffers[i].buffer.user : NULL;
       if (!buf)
             buf = i915_buffer(i915->vertex_buffers[i].buffer.resource)->data;
       draw_set_mapped_vertex_buffer(draw, i, buf, ~0);
    }

    /*
     * Map index buffer, if present
     */
    if (info->index_size) {
       mapped_indices = info->has_user_indices ? info->index.user : NULL;
       if (!mapped_indices)
          mapped_indices = i915_buffer(info->index.resource)->data;
       draw_set_indexes(draw,
                        (ubyte *) mapped_indices,
                        info->index_size, ~0);
    }

    if (i915->constants[PIPE_SHADER_VERTEX])
       draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 0,
                                       i915_buffer(i915->constants[PIPE_SHADER_VERTEX])->data,
                                       (i915->current.num_user_constants[PIPE_SHADER_VERTEX] *
                                       4 * sizeof(float)));
    else
       draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 0, NULL, 0);

    if (i915->num_vertex_sampler_views > 0)
       i915_prepare_vertex_sampling(i915);

    /*
     * Do the drawing
     */
    draw_vbo(i915->draw, info);

    /*
     * unmap vertex/index buffers
     */
    for (i = 0; i < i915->nr_vertex_buffers; i++) {
       draw_set_mapped_vertex_buffer(i915->draw, i, NULL, 0);
    }
    if (mapped_indices)
       draw_set_indexes(draw, NULL, 0, 0);

    if (i915->num_vertex_sampler_views > 0)
       i915_cleanup_vertex_sampling(i915);

    /*
     * Instead of flushing on every state change, we flush once here
     * when we fire the vbo.
     */
    draw_flush(i915->draw);
 }


 /*
  * Generic context functions
  */


 static void i915_destroy(struct pipe_context *pipe)
 {
    struct i915_context *i915 = i915_context(pipe);
    int i;

    if (i915->blitter)
       util_blitter_destroy(i915->blitter);

    draw_destroy(i915->draw);

    if (i915->base.stream_uploader)
       u_upload_destroy(i915->base.stream_uploader);

    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);

    /* unbind constant buffers */
    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
       pipe_resource_reference(&i915->constants[i], NULL);
    }

    FREE(i915);
 }

 struct pipe_context *
 i915_create_context(struct pipe_screen *screen, void *priv, unsigned flags)
 {
    struct i915_context *i915;

    i915 = CALLOC_STRUCT(i915_context);
    if (!i915)
       return NULL;

    i915->iws = i915_screen(screen)->iws;
    i915->base.screen = screen;
    i915->base.priv = priv;
    i915->base.stream_uploader = u_upload_create_default(&i915->base);
    i915->base.const_uploader = i915->base.stream_uploader;

    i915->base.destroy = i915_destroy;

    if (i915_screen(screen)->debug.use_blitter)
       i915->base.clear = i915_clear_blitter;
    else
       i915->base.clear = i915_clear_render;

    i915->base.draw_vbo = i915_draw_vbo;

    /* init this before draw */
    slab_create(&i915->transfer_pool, sizeof(struct pipe_transfer),
                     16);
    slab_create(&i915->texture_transfer_pool, sizeof(struct i915_transfer),
                     16);

    /* Batch stream debugging is a bit hacked up at the moment:
     */
    i915->batch = i915->iws->batchbuffer_create(i915->iws);

    /*
     * Create drawing context and plug our rendering stage into it.
     */
    i915->draw = draw_create(&i915->base);
    assert(i915->draw);
    if (!debug_get_option_i915_no_vbuf()) {
       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);
    i915_init_query_functions(i915);

    /* Create blitter. */
    i915->blitter = util_blitter_create(&i915->base);
    assert(i915->blitter);

    /* must be done before installing Draw stages */
    util_blitter_cache_all_shaders(i915->blitter);

    draw_install_aaline_stage(i915->draw, &i915->base);
    draw_install_aapoint_stage(i915->draw, &i915->base);
    draw_enable_point_sprites(i915->draw, TRUE);

    i915->dirty = ~0;
    i915->hardware_dirty = ~0;
    i915->immediate_dirty = ~0;
    i915->dynamic_dirty = ~0;
    i915->static_dirty = ~0;
    i915->flush_dirty = 0;

    return &i915->base;
 }
	/**************************************************************************
	*
	* Copyright 2003 VMware, Inc.
	* 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 VMWARE 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_query.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 "util/u_prim.h"
	#include "util/u_upload_mgr.h"
	#include "pipe/p_screen.h"


	DEBUG_GET_ONCE_BOOL_OPTION(i915_no_vbuf, "I915_NO_VBUF", FALSE)


	/*
	* Draw functions
	*/


	static void
	i915_draw_vbo(struct pipe_context pipe, const struct pipe_draw_info info)
	{
	struct i915_context *i915 = i915_context(pipe);
	struct draw_context *draw = i915->draw;
	const void *mapped_indices = NULL;
	unsigned i;

	if (!u_trim_pipe_prim(info->mode, (unsigned*)&info->count))
	return;

	/*
	* Ack vs contants here, helps ipers a lot.
	*/
	i915->dirty &= ~I915_NEW_VS_CONSTANTS;

	if (i915->dirty)
	i915_update_derived(i915);

	/*
	* Map vertex buffers
	*/
	for (i = 0; i < i915->nr_vertex_buffers; i++) {
	const void *buf = i915->vertex_buffers[i].is_user_buffer ?
	i915->vertex_buffers[i].buffer.user : NULL;
	if (!buf)
	buf = i915_buffer(i915->vertex_buffers[i].buffer.resource)->data;
	draw_set_mapped_vertex_buffer(draw, i, buf, ~0);
	}

	/*
	* Map index buffer, if present
	*/
	if (info->index_size) {
	mapped_indices = info->has_user_indices ? info->index.user : NULL;
	if (!mapped_indices)
	mapped_indices = i915_buffer(info->index.resource)->data;
	draw_set_indexes(draw,
	(ubyte *) mapped_indices,
	info->index_size, ~0);
	}

	if (i915->constants[PIPE_SHADER_VERTEX])
	draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 0,
	i915_buffer(i915->constants[PIPE_SHADER_VERTEX])->data,
	(i915->current.num_user_constants[PIPE_SHADER_VERTEX] *
	4 * sizeof(float)));
	else
	draw_set_mapped_constant_buffer(draw, PIPE_SHADER_VERTEX, 0, NULL, 0);

	if (i915->num_vertex_sampler_views > 0)
	i915_prepare_vertex_sampling(i915);

	/*
	* Do the drawing
	*/
	draw_vbo(i915->draw, info);

	/*
	* unmap vertex/index buffers
	*/
	for (i = 0; i < i915->nr_vertex_buffers; i++) {
	draw_set_mapped_vertex_buffer(i915->draw, i, NULL, 0);
	}
	if (mapped_indices)
	draw_set_indexes(draw, NULL, 0, 0);

	if (i915->num_vertex_sampler_views > 0)
	i915_cleanup_vertex_sampling(i915);

	/*
	* Instead of flushing on every state change, we flush once here
	* when we fire the vbo.
	*/
	draw_flush(i915->draw);
	}


	/*
	* Generic context functions
	*/


	static void i915_destroy(struct pipe_context *pipe)
	{
	struct i915_context *i915 = i915_context(pipe);
	int i;

	if (i915->blitter)
	util_blitter_destroy(i915->blitter);

	draw_destroy(i915->draw);

	if (i915->base.stream_uploader)
	u_upload_destroy(i915->base.stream_uploader);

	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);

	/* unbind constant buffers */
	for (i = 0; i < PIPE_SHADER_TYPES; i++) {
	pipe_resource_reference(&i915->constants[i], NULL);
	}

	FREE(i915);
	}

	struct pipe_context *
	i915_create_context(struct pipe_screen screen, void priv, unsigned flags)
	{
	struct i915_context *i915;

	i915 = CALLOC_STRUCT(i915_context);
	if (!i915)
	return NULL;

	i915->iws = i915_screen(screen)->iws;
	i915->base.screen = screen;
	i915->base.priv = priv;
	i915->base.stream_uploader = u_upload_create_default(&i915->base);
	i915->base.const_uploader = i915->base.stream_uploader;

	i915->base.destroy = i915_destroy;

	if (i915_screen(screen)->debug.use_blitter)
	i915->base.clear = i915_clear_blitter;
	else
	i915->base.clear = i915_clear_render;

	i915->base.draw_vbo = i915_draw_vbo;

	/* init this before draw */
	slab_create(&i915->transfer_pool, sizeof(struct pipe_transfer),
	16);
	slab_create(&i915->texture_transfer_pool, sizeof(struct i915_transfer),
	16);

	/* Batch stream debugging is a bit hacked up at the moment:
	*/
	i915->batch = i915->iws->batchbuffer_create(i915->iws);

	/*
	* Create drawing context and plug our rendering stage into it.
	*/
	i915->draw = draw_create(&i915->base);
	assert(i915->draw);
	if (!debug_get_option_i915_no_vbuf()) {
	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);
	i915_init_query_functions(i915);

	/* Create blitter. */
	i915->blitter = util_blitter_create(&i915->base);
	assert(i915->blitter);

	/* must be done before installing Draw stages */
	util_blitter_cache_all_shaders(i915->blitter);

	draw_install_aaline_stage(i915->draw, &i915->base);
	draw_install_aapoint_stage(i915->draw, &i915->base);
	draw_enable_point_sprites(i915->draw, TRUE);

	i915->dirty = ~0;
	i915->hardware_dirty = ~0;
	i915->immediate_dirty = ~0;
	i915->dynamic_dirty = ~0;
	i915->static_dirty = ~0;
	i915->flush_dirty = 0;

	return &i915->base;
	}