diff options
Diffstat (limited to 'mesalib/src/gallium')
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_blitter.c | 2072 |
1 files changed, 1036 insertions, 1036 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_blitter.c b/mesalib/src/gallium/auxiliary/util/u_blitter.c index 0d9ce9ff7..528f344a0 100644 --- a/mesalib/src/gallium/auxiliary/util/u_blitter.c +++ b/mesalib/src/gallium/auxiliary/util/u_blitter.c @@ -1,1036 +1,1036 @@ -/**************************************************************************
- *
- * Copyright 2009 Marek Olšák <maraeo@gmail.com>
- *
- * 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.
- *
- **************************************************************************/
-
-/**
- * @file
- * Blitter utility to facilitate acceleration of the clear, clear_render_target, clear_depth_stencil
- * resource_copy_region functions.
- *
- * @author Marek Olšák
- */
-
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "util/u_inlines.h"
-#include "pipe/p_shader_tokens.h"
-#include "pipe/p_state.h"
-
-#include "util/u_format.h"
-#include "util/u_memory.h"
-#include "util/u_math.h"
-#include "util/u_blitter.h"
-#include "util/u_draw_quad.h"
-#include "util/u_sampler.h"
-#include "util/u_simple_shaders.h"
-#include "util/u_surface.h"
-#include "util/u_texture.h"
-
-#define INVALID_PTR ((void*)~0)
-
-struct blitter_context_priv
-{
- struct blitter_context base;
-
- struct pipe_resource *vbuf; /**< quad */
-
- float vertices[4][2][4]; /**< {pos, color} or {pos, texcoord} */
-
- /* Templates for various state objects. */
- struct pipe_sampler_state template_sampler_state;
-
- /* Constant state objects. */
- /* Vertex shaders. */
- void *vs; /**< Vertex shader which passes {pos, generic} to the output.*/
-
- /* Fragment shaders. */
- /* The shader at index i outputs color to color buffers 0,1,...,i-1. */
- void *fs_col[PIPE_MAX_COLOR_BUFS+1];
-
- /* FS which outputs a color from a texture,
- where the index is PIPE_TEXTURE_* to be sampled. */
- void *fs_texfetch_col[PIPE_MAX_TEXTURE_TYPES];
-
- /* FS which outputs a depth from a texture,
- where the index is PIPE_TEXTURE_* to be sampled. */
- void *fs_texfetch_depth[PIPE_MAX_TEXTURE_TYPES];
-
- /* Blend state. */
- void *blend_write_color; /**< blend state with writemask of RGBA */
- void *blend_keep_color; /**< blend state with writemask of 0 */
-
- /* Depth stencil alpha state. */
- void *dsa_write_depth_stencil;
- void *dsa_write_depth_keep_stencil;
- void *dsa_keep_depth_stencil;
- void *dsa_keep_depth_write_stencil;
-
- void *velem_state;
-
- /* Sampler state for clamping to a miplevel. */
- void *sampler_state[PIPE_MAX_TEXTURE_LEVELS * 2];
-
- /* Rasterizer state. */
- void *rs_state;
-
- /* Viewport state. */
- struct pipe_viewport_state viewport;
-
- /* Clip state. */
- struct pipe_clip_state clip;
-
- /* Destination surface dimensions. */
- unsigned dst_width;
- unsigned dst_height;
-};
-
-static void blitter_draw_rectangle(struct blitter_context *blitter,
- unsigned x, unsigned y,
- unsigned width, unsigned height,
- float depth,
- enum blitter_attrib_type type,
- const float attrib[4]);
-
-
-struct blitter_context *util_blitter_create(struct pipe_context *pipe)
-{
- struct blitter_context_priv *ctx;
- struct pipe_blend_state blend;
- struct pipe_depth_stencil_alpha_state dsa;
- struct pipe_rasterizer_state rs_state;
- struct pipe_sampler_state *sampler_state;
- struct pipe_vertex_element velem[2];
- unsigned i;
-
- ctx = CALLOC_STRUCT(blitter_context_priv);
- if (!ctx)
- return NULL;
-
- ctx->base.pipe = pipe;
- ctx->base.draw_rectangle = blitter_draw_rectangle;
-
- /* init state objects for them to be considered invalid */
- ctx->base.saved_blend_state = INVALID_PTR;
- ctx->base.saved_dsa_state = INVALID_PTR;
- ctx->base.saved_rs_state = INVALID_PTR;
- ctx->base.saved_fs = INVALID_PTR;
- ctx->base.saved_vs = INVALID_PTR;
- ctx->base.saved_velem_state = INVALID_PTR;
- ctx->base.saved_fb_state.nr_cbufs = ~0;
- ctx->base.saved_num_sampler_views = ~0;
- ctx->base.saved_num_sampler_states = ~0;
- ctx->base.saved_num_vertex_buffers = ~0;
-
- /* blend state objects */
- memset(&blend, 0, sizeof(blend));
- ctx->blend_keep_color = pipe->create_blend_state(pipe, &blend);
-
- blend.rt[0].colormask = PIPE_MASK_RGBA;
- ctx->blend_write_color = pipe->create_blend_state(pipe, &blend);
-
- /* depth stencil alpha state objects */
- memset(&dsa, 0, sizeof(dsa));
- ctx->dsa_keep_depth_stencil =
- pipe->create_depth_stencil_alpha_state(pipe, &dsa);
-
- dsa.depth.enabled = 1;
- dsa.depth.writemask = 1;
- dsa.depth.func = PIPE_FUNC_ALWAYS;
- ctx->dsa_write_depth_keep_stencil =
- pipe->create_depth_stencil_alpha_state(pipe, &dsa);
-
- dsa.stencil[0].enabled = 1;
- dsa.stencil[0].func = PIPE_FUNC_ALWAYS;
- dsa.stencil[0].fail_op = PIPE_STENCIL_OP_REPLACE;
- dsa.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE;
- dsa.stencil[0].zfail_op = PIPE_STENCIL_OP_REPLACE;
- dsa.stencil[0].valuemask = 0xff;
- dsa.stencil[0].writemask = 0xff;
- ctx->dsa_write_depth_stencil =
- pipe->create_depth_stencil_alpha_state(pipe, &dsa);
-
-
- dsa.depth.enabled = 0;
- dsa.depth.writemask = 0;
- ctx->dsa_keep_depth_write_stencil =
- pipe->create_depth_stencil_alpha_state(pipe, &dsa);
-
- /* sampler state */
- sampler_state = &ctx->template_sampler_state;
- sampler_state->wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
- sampler_state->wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
- sampler_state->wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
- sampler_state->normalized_coords = TRUE;
- /* The sampler state objects which sample from a specified mipmap level
- * are created on-demand. */
-
- /* rasterizer state */
- memset(&rs_state, 0, sizeof(rs_state));
- rs_state.cull_face = PIPE_FACE_NONE;
- rs_state.gl_rasterization_rules = 1;
- rs_state.flatshade = 1;
- ctx->rs_state = pipe->create_rasterizer_state(pipe, &rs_state);
-
- /* vertex elements state */
- memset(&velem[0], 0, sizeof(velem[0]) * 2);
- for (i = 0; i < 2; i++) {
- velem[i].src_offset = i * 4 * sizeof(float);
- velem[i].instance_divisor = 0;
- velem[i].vertex_buffer_index = 0;
- velem[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
- }
- ctx->velem_state = pipe->create_vertex_elements_state(pipe, 2, &velem[0]);
-
- /* fragment shaders are created on-demand */
-
- /* vertex shader */
- {
- const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
- TGSI_SEMANTIC_GENERIC };
- const uint semantic_indices[] = { 0, 0 };
- ctx->vs =
- util_make_vertex_passthrough_shader(pipe, 2, semantic_names,
- semantic_indices);
- }
-
- /* set invariant vertex coordinates */
- for (i = 0; i < 4; i++)
- ctx->vertices[i][0][3] = 1; /*v.w*/
-
- /* create the vertex buffer */
- ctx->vbuf = pipe_user_buffer_create(ctx->base.pipe->screen,
- ctx->vertices,
- sizeof(ctx->vertices),
- PIPE_BIND_VERTEX_BUFFER);
-
- return &ctx->base;
-}
-
-void util_blitter_destroy(struct blitter_context *blitter)
-{
- struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
- struct pipe_context *pipe = blitter->pipe;
- int i;
-
- pipe->delete_blend_state(pipe, ctx->blend_write_color);
- pipe->delete_blend_state(pipe, ctx->blend_keep_color);
- pipe->delete_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil);
- pipe->delete_depth_stencil_alpha_state(pipe,
- ctx->dsa_write_depth_keep_stencil);
- pipe->delete_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_stencil);
- pipe->delete_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_write_stencil);
-
- pipe->delete_rasterizer_state(pipe, ctx->rs_state);
- pipe->delete_vs_state(pipe, ctx->vs);
- pipe->delete_vertex_elements_state(pipe, ctx->velem_state);
-
- for (i = 0; i < PIPE_MAX_TEXTURE_TYPES; i++) {
- if (ctx->fs_texfetch_col[i])
- pipe->delete_fs_state(pipe, ctx->fs_texfetch_col[i]);
- if (ctx->fs_texfetch_depth[i])
- pipe->delete_fs_state(pipe, ctx->fs_texfetch_depth[i]);
- }
-
- for (i = 0; i <= PIPE_MAX_COLOR_BUFS; i++)
- if (ctx->fs_col[i])
- pipe->delete_fs_state(pipe, ctx->fs_col[i]);
-
- for (i = 0; i < PIPE_MAX_TEXTURE_LEVELS * 2; i++)
- if (ctx->sampler_state[i])
- pipe->delete_sampler_state(pipe, ctx->sampler_state[i]);
-
- pipe_resource_reference(&ctx->vbuf, NULL);
- FREE(ctx);
-}
-
-static void blitter_check_saved_CSOs(struct blitter_context_priv *ctx)
-{
- if (ctx->base.running) {
- _debug_printf("u_blitter: Caught recursion on save. "
- "This is a driver bug.\n");
- }
- ctx->base.running = TRUE;
-
- /* make sure these CSOs have been saved */
- assert(ctx->base.saved_blend_state != INVALID_PTR &&
- ctx->base.saved_dsa_state != INVALID_PTR &&
- ctx->base.saved_rs_state != INVALID_PTR &&
- ctx->base.saved_fs != INVALID_PTR &&
- ctx->base.saved_vs != INVALID_PTR &&
- ctx->base.saved_velem_state != INVALID_PTR);
-}
-
-static void blitter_restore_CSOs(struct blitter_context_priv *ctx)
-{
- struct pipe_context *pipe = ctx->base.pipe;
- unsigned i;
-
- /* restore the state objects which are always required to be saved */
- pipe->bind_blend_state(pipe, ctx->base.saved_blend_state);
- pipe->bind_depth_stencil_alpha_state(pipe, ctx->base.saved_dsa_state);
- pipe->bind_rasterizer_state(pipe, ctx->base.saved_rs_state);
- pipe->bind_fs_state(pipe, ctx->base.saved_fs);
- pipe->bind_vs_state(pipe, ctx->base.saved_vs);
- pipe->bind_vertex_elements_state(pipe, ctx->base.saved_velem_state);
-
- ctx->base.saved_blend_state = INVALID_PTR;
- ctx->base.saved_dsa_state = INVALID_PTR;
- ctx->base.saved_rs_state = INVALID_PTR;
- ctx->base.saved_fs = INVALID_PTR;
- ctx->base.saved_vs = INVALID_PTR;
- ctx->base.saved_velem_state = INVALID_PTR;
-
- pipe->set_stencil_ref(pipe, &ctx->base.saved_stencil_ref);
- pipe->set_viewport_state(pipe, &ctx->base.saved_viewport);
- pipe->set_clip_state(pipe, &ctx->base.saved_clip);
-
- /* restore the state objects which are required to be saved before copy/fill
- */
- if (ctx->base.saved_fb_state.nr_cbufs != ~0) {
- pipe->set_framebuffer_state(pipe, &ctx->base.saved_fb_state);
- util_unreference_framebuffer_state(&ctx->base.saved_fb_state);
- ctx->base.saved_fb_state.nr_cbufs = ~0;
- }
-
- if (ctx->base.saved_num_sampler_states != ~0) {
- pipe->bind_fragment_sampler_states(pipe,
- ctx->base.saved_num_sampler_states,
- ctx->base.saved_sampler_states);
- ctx->base.saved_num_sampler_states = ~0;
- }
-
- if (ctx->base.saved_num_sampler_views != ~0) {
- pipe->set_fragment_sampler_views(pipe,
- ctx->base.saved_num_sampler_views,
- ctx->base.saved_sampler_views);
-
- for (i = 0; i < ctx->base.saved_num_sampler_views; i++)
- pipe_sampler_view_reference(&ctx->base.saved_sampler_views[i],
- NULL);
-
- ctx->base.saved_num_sampler_views = ~0;
- }
-
- if (ctx->base.saved_num_vertex_buffers != ~0) {
- pipe->set_vertex_buffers(pipe,
- ctx->base.saved_num_vertex_buffers,
- ctx->base.saved_vertex_buffers);
-
- for (i = 0; i < ctx->base.saved_num_vertex_buffers; i++) {
- if (ctx->base.saved_vertex_buffers[i].buffer) {
- pipe_resource_reference(&ctx->base.saved_vertex_buffers[i].buffer,
- NULL);
- }
- }
- ctx->base.saved_num_vertex_buffers = ~0;
- }
-
- if (!ctx->base.running) {
- _debug_printf("u_blitter: Caught recursion on restore. "
- "This is a driver bug.\n");
- }
- ctx->base.running = FALSE;
-}
-
-static void blitter_set_rectangle(struct blitter_context_priv *ctx,
- unsigned x1, unsigned y1,
- unsigned x2, unsigned y2,
- float depth)
-{
- int i;
-
- /* set vertex positions */
- ctx->vertices[0][0][0] = (float)x1 / ctx->dst_width * 2.0f - 1.0f; /*v0.x*/
- ctx->vertices[0][0][1] = (float)y1 / ctx->dst_height * 2.0f - 1.0f; /*v0.y*/
-
- ctx->vertices[1][0][0] = (float)x2 / ctx->dst_width * 2.0f - 1.0f; /*v1.x*/
- ctx->vertices[1][0][1] = (float)y1 / ctx->dst_height * 2.0f - 1.0f; /*v1.y*/
-
- ctx->vertices[2][0][0] = (float)x2 / ctx->dst_width * 2.0f - 1.0f; /*v2.x*/
- ctx->vertices[2][0][1] = (float)y2 / ctx->dst_height * 2.0f - 1.0f; /*v2.y*/
-
- ctx->vertices[3][0][0] = (float)x1 / ctx->dst_width * 2.0f - 1.0f; /*v3.x*/
- ctx->vertices[3][0][1] = (float)y2 / ctx->dst_height * 2.0f - 1.0f; /*v3.y*/
-
- for (i = 0; i < 4; i++)
- ctx->vertices[i][0][2] = depth; /*z*/
-
- /* viewport */
- ctx->viewport.scale[0] = 0.5f * ctx->dst_width;
- ctx->viewport.scale[1] = 0.5f * ctx->dst_height;
- ctx->viewport.scale[2] = 1.0f;
- ctx->viewport.scale[3] = 1.0f;
- ctx->viewport.translate[0] = 0.5f * ctx->dst_width;
- ctx->viewport.translate[1] = 0.5f * ctx->dst_height;
- ctx->viewport.translate[2] = 0.0f;
- ctx->viewport.translate[3] = 0.0f;
- ctx->base.pipe->set_viewport_state(ctx->base.pipe, &ctx->viewport);
-
- /* clip */
- ctx->base.pipe->set_clip_state(ctx->base.pipe, &ctx->clip);
-}
-
-static void blitter_set_clear_color(struct blitter_context_priv *ctx,
- const float *rgba)
-{
- int i;
-
- if (rgba) {
- for (i = 0; i < 4; i++) {
- ctx->vertices[i][1][0] = rgba[0];
- ctx->vertices[i][1][1] = rgba[1];
- ctx->vertices[i][1][2] = rgba[2];
- ctx->vertices[i][1][3] = rgba[3];
- }
- } else {
- for (i = 0; i < 4; i++) {
- ctx->vertices[i][1][0] = 0;
- ctx->vertices[i][1][1] = 0;
- ctx->vertices[i][1][2] = 0;
- ctx->vertices[i][1][3] = 0;
- }
- }
-}
-
-static void get_texcoords(struct pipe_resource *src,
- unsigned level,
- unsigned x1, unsigned y1,
- unsigned x2, unsigned y2,
- boolean normalized, float out[4])
-{
- if(normalized)
- {
- out[0] = x1 / (float)u_minify(src->width0, level);
- out[1] = y1 / (float)u_minify(src->height0, level);
- out[2] = x2 / (float)u_minify(src->width0, level);
- out[3] = y2 / (float)u_minify(src->height0, level);
- }
- else
- {
- out[0] = x1;
- out[1] = y1;
- out[2] = x2;
- out[3] = y2;
- }
-}
-
-static void set_texcoords_in_vertices(const float coord[4],
- float *out, unsigned stride)
-{
- out[0] = coord[0]; /*t0.s*/
- out[1] = coord[1]; /*t0.t*/
- out += stride;
- out[0] = coord[2]; /*t1.s*/
- out[1] = coord[1]; /*t1.t*/
- out += stride;
- out[0] = coord[2]; /*t2.s*/
- out[1] = coord[3]; /*t2.t*/
- out += stride;
- out[0] = coord[0]; /*t3.s*/
- out[1] = coord[3]; /*t3.t*/
-}
-
-static void blitter_set_texcoords_2d(struct blitter_context_priv *ctx,
- struct pipe_resource *src,
- unsigned level,
- unsigned x1, unsigned y1,
- unsigned x2, unsigned y2)
-{
- unsigned i;
- float coord[4];
-
- get_texcoords(src, level, x1, y1, x2, y2, TRUE, coord);
- set_texcoords_in_vertices(coord, &ctx->vertices[0][1][0], 8);
-
- for (i = 0; i < 4; i++) {
- ctx->vertices[i][1][2] = 0; /*r*/
- ctx->vertices[i][1][3] = 1; /*q*/
- }
-}
-
-static void blitter_set_texcoords_3d(struct blitter_context_priv *ctx,
- struct pipe_resource *src,
- unsigned level,
- unsigned zslice,
- unsigned x1, unsigned y1,
- unsigned x2, unsigned y2)
-{
- int i;
- float r = zslice / (float)u_minify(src->depth0, level);
-
- blitter_set_texcoords_2d(ctx, src, level, x1, y1, x2, y2);
-
- for (i = 0; i < 4; i++)
- ctx->vertices[i][1][2] = r; /*r*/
-}
-
-static void blitter_set_texcoords_cube(struct blitter_context_priv *ctx,
- struct pipe_resource *src,
- unsigned level, unsigned face,
- unsigned x1, unsigned y1,
- unsigned x2, unsigned y2)
-{
- int i;
- float coord[4];
- float st[4][2];
-
- get_texcoords(src, level, x1, y1, x2, y2, TRUE, coord);
- set_texcoords_in_vertices(coord, &st[0][0], 2);
-
- util_map_texcoords2d_onto_cubemap(face,
- /* pointer, stride in floats */
- &st[0][0], 2,
- &ctx->vertices[0][1][0], 8);
-
- for (i = 0; i < 4; i++)
- ctx->vertices[i][1][3] = 1; /*q*/
-}
-
-static void blitter_set_dst_dimensions(struct blitter_context_priv *ctx,
- unsigned width, unsigned height)
-{
- ctx->dst_width = width;
- ctx->dst_height = height;
-}
-
-static INLINE
-void **blitter_get_sampler_state(struct blitter_context_priv *ctx,
- int miplevel, boolean normalized)
-{
- struct pipe_context *pipe = ctx->base.pipe;
- struct pipe_sampler_state *sampler_state = &ctx->template_sampler_state;
-
- assert(miplevel < PIPE_MAX_TEXTURE_LEVELS);
-
- /* Create the sampler state on-demand. */
- if (!ctx->sampler_state[miplevel * 2 + normalized]) {
- sampler_state->lod_bias = miplevel;
- sampler_state->min_lod = miplevel;
- sampler_state->max_lod = miplevel;
- sampler_state->normalized_coords = normalized;
-
- ctx->sampler_state[miplevel * 2 + normalized] = pipe->create_sampler_state(pipe,
- sampler_state);
- }
-
- /* Return void** so that it can be passed to bind_fragment_sampler_states
- * directly. */
- return &ctx->sampler_state[miplevel * 2 + normalized];
-}
-
-static INLINE
-void *blitter_get_fs_col(struct blitter_context_priv *ctx, unsigned num_cbufs)
-{
- struct pipe_context *pipe = ctx->base.pipe;
-
- assert(num_cbufs <= PIPE_MAX_COLOR_BUFS);
-
- if (!ctx->fs_col[num_cbufs])
- ctx->fs_col[num_cbufs] =
- util_make_fragment_cloneinput_shader(pipe, num_cbufs,
- TGSI_SEMANTIC_GENERIC,
- TGSI_INTERPOLATE_LINEAR);
-
- return ctx->fs_col[num_cbufs];
-}
-
-/** Convert PIPE_TEXTURE_x to TGSI_TEXTURE_x */
-static unsigned
-pipe_tex_to_tgsi_tex(enum pipe_texture_target pipe_tex_target)
-{
- switch (pipe_tex_target) {
- case PIPE_TEXTURE_1D:
- return TGSI_TEXTURE_1D;
- case PIPE_TEXTURE_2D:
- return TGSI_TEXTURE_2D;
- case PIPE_TEXTURE_RECT:
- return TGSI_TEXTURE_RECT;
- case PIPE_TEXTURE_3D:
- return TGSI_TEXTURE_3D;
- case PIPE_TEXTURE_CUBE:
- return TGSI_TEXTURE_CUBE;
- default:
- assert(0 && "unexpected texture target");
- return TGSI_TEXTURE_UNKNOWN;
- }
-}
-
-
-static INLINE
-void *blitter_get_fs_texfetch_col(struct blitter_context_priv *ctx,
- unsigned tex_target)
-{
- struct pipe_context *pipe = ctx->base.pipe;
-
- assert(tex_target < PIPE_MAX_TEXTURE_TYPES);
-
- /* Create the fragment shader on-demand. */
- if (!ctx->fs_texfetch_col[tex_target]) {
- unsigned tgsi_tex = pipe_tex_to_tgsi_tex(tex_target);
-
- ctx->fs_texfetch_col[tex_target] =
- util_make_fragment_tex_shader(pipe, tgsi_tex, TGSI_INTERPOLATE_LINEAR);
- }
-
- return ctx->fs_texfetch_col[tex_target];
-}
-
-static INLINE
-void *blitter_get_fs_texfetch_depth(struct blitter_context_priv *ctx,
- unsigned tex_target)
-{
- struct pipe_context *pipe = ctx->base.pipe;
-
- assert(tex_target < PIPE_MAX_TEXTURE_TYPES);
-
- /* Create the fragment shader on-demand. */
- if (!ctx->fs_texfetch_depth[tex_target]) {
- unsigned tgsi_tex = pipe_tex_to_tgsi_tex(tex_target);
-
- ctx->fs_texfetch_depth[tex_target] =
- util_make_fragment_tex_shader_writedepth(pipe, tgsi_tex,
- TGSI_INTERPOLATE_LINEAR);
- }
-
- return ctx->fs_texfetch_depth[tex_target];
-}
-
-static void blitter_draw_rectangle(struct blitter_context *blitter,
- unsigned x1, unsigned y1,
- unsigned x2, unsigned y2,
- float depth,
- enum blitter_attrib_type type,
- const float attrib[4])
-{
- struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
-
- switch (type) {
- case UTIL_BLITTER_ATTRIB_COLOR:
- blitter_set_clear_color(ctx, attrib);
- break;
-
- case UTIL_BLITTER_ATTRIB_TEXCOORD:
- set_texcoords_in_vertices(attrib, &ctx->vertices[0][1][0], 8);
- break;
-
- default:;
- }
-
- blitter_set_rectangle(ctx, x1, y1, x2, y2, depth);
- ctx->base.pipe->redefine_user_buffer(ctx->base.pipe, ctx->vbuf,
- 0, ctx->vbuf->width0);
- util_draw_vertex_buffer(ctx->base.pipe, NULL, ctx->vbuf, 0,
- PIPE_PRIM_TRIANGLE_FAN, 4, 2);
-}
-
-static void util_blitter_clear_custom(struct blitter_context *blitter,
- unsigned width, unsigned height,
- unsigned num_cbufs,
- unsigned clear_buffers,
- const float *rgba,
- double depth, unsigned stencil,
- void *custom_blend, void *custom_dsa)
-{
- struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
- struct pipe_context *pipe = ctx->base.pipe;
- struct pipe_stencil_ref sr = { { 0 } };
-
- assert(num_cbufs <= PIPE_MAX_COLOR_BUFS);
-
- blitter_check_saved_CSOs(ctx);
-
- /* bind CSOs */
- if (custom_blend) {
- pipe->bind_blend_state(pipe, custom_blend);
- } else if (clear_buffers & PIPE_CLEAR_COLOR) {
- pipe->bind_blend_state(pipe, ctx->blend_write_color);
- } else {
- pipe->bind_blend_state(pipe, ctx->blend_keep_color);
- }
-
- if (custom_dsa) {
- pipe->bind_depth_stencil_alpha_state(pipe, custom_dsa);
- } else if ((clear_buffers & PIPE_CLEAR_DEPTHSTENCIL) == PIPE_CLEAR_DEPTHSTENCIL) {
- pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_stencil);
- } else if (clear_buffers & PIPE_CLEAR_DEPTH) {
- pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_keep_stencil);
- } else if (clear_buffers & PIPE_CLEAR_STENCIL) {
- pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_write_stencil);
- } else {
- pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil);
- }
-
- sr.ref_value[0] = stencil & 0xff;
- pipe->set_stencil_ref(pipe, &sr);
-
- pipe->bind_rasterizer_state(pipe, ctx->rs_state);
- pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
- pipe->bind_fs_state(pipe, blitter_get_fs_col(ctx, num_cbufs));
- pipe->bind_vs_state(pipe, ctx->vs);
-
- blitter_set_dst_dimensions(ctx, width, height);
- blitter->draw_rectangle(blitter, 0, 0, width, height, depth,
- UTIL_BLITTER_ATTRIB_COLOR, rgba);
- blitter_restore_CSOs(ctx);
-}
-
-void util_blitter_clear(struct blitter_context *blitter,
- unsigned width, unsigned height,
- unsigned num_cbufs,
- unsigned clear_buffers,
- const float *rgba,
- double depth, unsigned stencil)
-{
- util_blitter_clear_custom(blitter, width, height, num_cbufs,
- clear_buffers, rgba, depth, stencil,
- NULL, NULL);
-}
-
-void util_blitter_clear_depth_custom(struct blitter_context *blitter,
- unsigned width, unsigned height,
- double depth, void *custom_dsa)
-{
- const float rgba[4] = {0, 0, 0, 0};
- util_blitter_clear_custom(blitter, width, height, 0,
- 0, rgba, depth, 0, NULL, custom_dsa);
-}
-
-static
-boolean is_overlap(unsigned sx1, unsigned sx2, unsigned sy1, unsigned sy2,
- unsigned dx1, unsigned dx2, unsigned dy1, unsigned dy2)
-{
- return sx1 < dx2 && sx2 > dx1 && sy1 < dy2 && sy2 > dy1;
-}
-
-void util_blitter_copy_region(struct blitter_context *blitter,
- struct pipe_resource *dst,
- unsigned dstlevel,
- unsigned dstx, unsigned dsty, unsigned dstz,
- struct pipe_resource *src,
- unsigned srclevel,
- const struct pipe_box *srcbox,
- boolean ignore_stencil)
-{
- struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
- struct pipe_context *pipe = ctx->base.pipe;
- struct pipe_screen *screen = pipe->screen;
- struct pipe_surface *dstsurf, surf_templ;
- struct pipe_framebuffer_state fb_state;
- struct pipe_sampler_view viewTempl, *view;
- unsigned bind;
- unsigned width = srcbox->width;
- unsigned height = srcbox->height;
- boolean is_stencil, is_depth;
- boolean normalized;
-
- /* Give up if textures are not set. */
- assert(dst && src);
- if (!dst || !src)
- return;
-
- /* Sanity checks. */
- if (dst == src) {
- assert(!is_overlap(srcbox->x, srcbox->x + width, srcbox->y, srcbox->y + height,
- dstx, dstx + width, dsty, dsty + height));
- }
- assert(src->target < PIPE_MAX_TEXTURE_TYPES);
- /* XXX should handle 3d regions */
- assert(srcbox->depth == 1);
-
- /* Is this a ZS format? */
- is_depth = util_format_get_component_bits(src->format, UTIL_FORMAT_COLORSPACE_ZS, 0) != 0;
- is_stencil = util_format_get_component_bits(src->format, UTIL_FORMAT_COLORSPACE_ZS, 1) != 0;
-
- if (is_depth || is_stencil)
- bind = PIPE_BIND_DEPTH_STENCIL;
- else
- bind = PIPE_BIND_RENDER_TARGET;
-
- /* Check if we can sample from and render to the surfaces. */
- /* (assuming copying a stencil buffer is not possible) */
- if ((!ignore_stencil && is_stencil) ||
- !screen->is_format_supported(screen, dst->format, dst->target,
- dst->nr_samples, bind) ||
- !screen->is_format_supported(screen, src->format, src->target,
- src->nr_samples, PIPE_BIND_SAMPLER_VIEW)) {
- ctx->base.running = TRUE;
- util_resource_copy_region(pipe, dst, dstlevel, dstx, dsty, dstz,
- src, srclevel, srcbox);
- ctx->base.running = FALSE;
- return;
- }
-
- /* Get surface. */
- memset(&surf_templ, 0, sizeof(surf_templ));
- u_surface_default_template(&surf_templ, dst, bind);
- surf_templ.format = util_format_linear(dst->format);
- surf_templ.u.tex.level = dstlevel;
- surf_templ.u.tex.first_layer = dstz;
- surf_templ.u.tex.last_layer = dstz;
- dstsurf = pipe->create_surface(pipe, dst, &surf_templ);
-
- /* Check whether the states are properly saved. */
- blitter_check_saved_CSOs(ctx);
- assert(blitter->saved_fb_state.nr_cbufs != ~0);
- assert(blitter->saved_num_sampler_views != ~0);
- assert(blitter->saved_num_sampler_states != ~0);
-
- /* Initialize framebuffer state. */
- fb_state.width = dstsurf->width;
- fb_state.height = dstsurf->height;
-
- if (is_depth) {
- pipe->bind_blend_state(pipe, ctx->blend_keep_color);
- pipe->bind_depth_stencil_alpha_state(pipe,
- ctx->dsa_write_depth_keep_stencil);
- pipe->bind_fs_state(pipe,
- blitter_get_fs_texfetch_depth(ctx, src->target));
-
- fb_state.nr_cbufs = 0;
- fb_state.zsbuf = dstsurf;
- } else {
- pipe->bind_blend_state(pipe, ctx->blend_write_color);
- pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil);
- pipe->bind_fs_state(pipe,
- blitter_get_fs_texfetch_col(ctx, src->target));
-
- fb_state.nr_cbufs = 1;
- fb_state.cbufs[0] = dstsurf;
- fb_state.zsbuf = 0;
- }
-
- normalized = src->target != PIPE_TEXTURE_RECT;
-
- /* Initialize sampler view. */
- u_sampler_view_default_template(&viewTempl, src, util_format_linear(src->format));
- view = pipe->create_sampler_view(pipe, src, &viewTempl);
-
- /* Set rasterizer state, shaders, and textures. */
- pipe->bind_rasterizer_state(pipe, ctx->rs_state);
- pipe->bind_vs_state(pipe, ctx->vs);
- pipe->bind_fragment_sampler_states(pipe, 1,
- blitter_get_sampler_state(ctx, srclevel, normalized));
- pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
- pipe->set_fragment_sampler_views(pipe, 1, &view);
- pipe->set_framebuffer_state(pipe, &fb_state);
-
- blitter_set_dst_dimensions(ctx, dstsurf->width, dstsurf->height);
-
- switch (src->target) {
- /* Draw the quad with the draw_rectangle callback. */
- case PIPE_TEXTURE_1D:
- case PIPE_TEXTURE_2D:
- case PIPE_TEXTURE_RECT:
- {
- /* Set texture coordinates. */
- float coord[4];
- get_texcoords(src, srclevel, srcbox->x, srcbox->y,
- srcbox->x+width, srcbox->y+height, normalized, coord);
-
- /* Draw. */
- blitter->draw_rectangle(blitter, dstx, dsty, dstx+width, dsty+height, 0,
- UTIL_BLITTER_ATTRIB_TEXCOORD, coord);
- }
- break;
-
- /* Draw the quad with the generic codepath. */
- case PIPE_TEXTURE_3D:
- case PIPE_TEXTURE_CUBE:
- /* Set texture coordinates. */
- if (src->target == PIPE_TEXTURE_3D)
- blitter_set_texcoords_3d(ctx, src, srclevel, srcbox->z,
- srcbox->x, srcbox->y,
- srcbox->x + width, srcbox->y + height);
- else
- blitter_set_texcoords_cube(ctx, src, srclevel, srcbox->z,
- srcbox->x, srcbox->y,
- srcbox->x + width, srcbox->y + height);
-
- /* Draw. */
- blitter_set_rectangle(ctx, dstx, dsty, dstx+width, dsty+height, 0);
- ctx->base.pipe->redefine_user_buffer(ctx->base.pipe, ctx->vbuf,
- 0, ctx->vbuf->width0);
- util_draw_vertex_buffer(ctx->base.pipe, NULL, ctx->vbuf, 0,
- PIPE_PRIM_TRIANGLE_FAN, 4, 2);
- break;
-
- default:
- assert(0);
- return;
- }
-
- blitter_restore_CSOs(ctx);
-
- pipe_surface_reference(&dstsurf, NULL);
- pipe_sampler_view_reference(&view, NULL);
-}
-
-/* Clear a region of a color surface to a constant value. */
-void util_blitter_clear_render_target(struct blitter_context *blitter,
- struct pipe_surface *dstsurf,
- const float *rgba,
- unsigned dstx, unsigned dsty,
- unsigned width, unsigned height)
-{
- struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
- struct pipe_context *pipe = ctx->base.pipe;
- struct pipe_framebuffer_state fb_state;
-
- assert(dstsurf->texture);
- if (!dstsurf->texture)
- return;
-
- /* check the saved state */
- blitter_check_saved_CSOs(ctx);
- assert(blitter->saved_fb_state.nr_cbufs != ~0);
-
- /* bind CSOs */
- pipe->bind_blend_state(pipe, ctx->blend_write_color);
- pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil);
- pipe->bind_rasterizer_state(pipe, ctx->rs_state);
- pipe->bind_fs_state(pipe, blitter_get_fs_col(ctx, 1));
- pipe->bind_vs_state(pipe, ctx->vs);
- pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
-
- /* set a framebuffer state */
- fb_state.width = dstsurf->width;
- fb_state.height = dstsurf->height;
- fb_state.nr_cbufs = 1;
- fb_state.cbufs[0] = dstsurf;
- fb_state.zsbuf = 0;
- pipe->set_framebuffer_state(pipe, &fb_state);
-
- blitter_set_dst_dimensions(ctx, dstsurf->width, dstsurf->height);
- blitter->draw_rectangle(blitter, dstx, dsty, dstx+width, dsty+height, 0,
- UTIL_BLITTER_ATTRIB_COLOR, rgba);
- blitter_restore_CSOs(ctx);
-}
-
-/* Clear a region of a depth stencil surface. */
-void util_blitter_clear_depth_stencil(struct blitter_context *blitter,
- struct pipe_surface *dstsurf,
- unsigned clear_flags,
- double depth,
- unsigned stencil,
- unsigned dstx, unsigned dsty,
- unsigned width, unsigned height)
-{
- struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
- struct pipe_context *pipe = ctx->base.pipe;
- struct pipe_framebuffer_state fb_state;
- struct pipe_stencil_ref sr = { { 0 } };
-
- assert(dstsurf->texture);
- if (!dstsurf->texture)
- return;
-
- /* check the saved state */
- blitter_check_saved_CSOs(ctx);
- assert(blitter->saved_fb_state.nr_cbufs != ~0);
-
- /* bind CSOs */
- pipe->bind_blend_state(pipe, ctx->blend_keep_color);
- if ((clear_flags & PIPE_CLEAR_DEPTHSTENCIL) == PIPE_CLEAR_DEPTHSTENCIL) {
- sr.ref_value[0] = stencil & 0xff;
- pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_stencil);
- pipe->set_stencil_ref(pipe, &sr);
- }
- else if (clear_flags & PIPE_CLEAR_DEPTH) {
- pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_keep_stencil);
- }
- else if (clear_flags & PIPE_CLEAR_STENCIL) {
- sr.ref_value[0] = stencil & 0xff;
- pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_write_stencil);
- pipe->set_stencil_ref(pipe, &sr);
- }
- else
- /* hmm that should be illegal probably, or make it a no-op somewhere */
- pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil);
-
- pipe->bind_rasterizer_state(pipe, ctx->rs_state);
- pipe->bind_fs_state(pipe, blitter_get_fs_col(ctx, 0));
- pipe->bind_vs_state(pipe, ctx->vs);
- pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
-
- /* set a framebuffer state */
- fb_state.width = dstsurf->width;
- fb_state.height = dstsurf->height;
- fb_state.nr_cbufs = 0;
- fb_state.cbufs[0] = 0;
- fb_state.zsbuf = dstsurf;
- pipe->set_framebuffer_state(pipe, &fb_state);
-
- blitter_set_dst_dimensions(ctx, dstsurf->width, dstsurf->height);
- blitter->draw_rectangle(blitter, dstx, dsty, dstx+width, dsty+height, depth,
- UTIL_BLITTER_ATTRIB_NONE, NULL);
- blitter_restore_CSOs(ctx);
-}
-
-/* draw a rectangle across a region using a custom dsa stage - for r600g */
-void util_blitter_custom_depth_stencil(struct blitter_context *blitter,
- struct pipe_surface *zsurf,
- struct pipe_surface *cbsurf,
- void *dsa_stage, float depth)
-{
- struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
- struct pipe_context *pipe = ctx->base.pipe;
- struct pipe_framebuffer_state fb_state;
-
- assert(zsurf->texture);
- if (!zsurf->texture)
- return;
-
- /* check the saved state */
- blitter_check_saved_CSOs(ctx);
- assert(blitter->saved_fb_state.nr_cbufs != ~0);
-
- /* bind CSOs */
- pipe->bind_blend_state(pipe, ctx->blend_write_color);
- pipe->bind_depth_stencil_alpha_state(pipe, dsa_stage);
-
- pipe->bind_rasterizer_state(pipe, ctx->rs_state);
- pipe->bind_fs_state(pipe, blitter_get_fs_col(ctx, 0));
- pipe->bind_vs_state(pipe, ctx->vs);
- pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
-
- /* set a framebuffer state */
- fb_state.width = zsurf->width;
- fb_state.height = zsurf->height;
- fb_state.nr_cbufs = 1;
- if (cbsurf) {
- fb_state.cbufs[0] = cbsurf;
- fb_state.nr_cbufs = 1;
- } else {
- fb_state.cbufs[0] = NULL;
- fb_state.nr_cbufs = 0;
- }
- fb_state.zsbuf = zsurf;
- pipe->set_framebuffer_state(pipe, &fb_state);
-
- blitter_set_dst_dimensions(ctx, zsurf->width, zsurf->height);
- blitter->draw_rectangle(blitter, 0, 0, zsurf->width, zsurf->height, depth,
- UTIL_BLITTER_ATTRIB_NONE, NULL);
- blitter_restore_CSOs(ctx);
-}
+/************************************************************************** + * + * Copyright 2009 Marek Olšák <maraeo@gmail.com> + * + * 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. + * + **************************************************************************/ + +/** + * @file + * Blitter utility to facilitate acceleration of the clear, clear_render_target, clear_depth_stencil + * resource_copy_region functions. + * + * @author Marek Olšák + */ + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "util/u_inlines.h" +#include "pipe/p_shader_tokens.h" +#include "pipe/p_state.h" + +#include "util/u_format.h" +#include "util/u_memory.h" +#include "util/u_math.h" +#include "util/u_blitter.h" +#include "util/u_draw_quad.h" +#include "util/u_sampler.h" +#include "util/u_simple_shaders.h" +#include "util/u_surface.h" +#include "util/u_texture.h" + +#define INVALID_PTR ((void*)~0) + +struct blitter_context_priv +{ + struct blitter_context base; + + struct pipe_resource *vbuf; /**< quad */ + + float vertices[4][2][4]; /**< {pos, color} or {pos, texcoord} */ + + /* Templates for various state objects. */ + struct pipe_sampler_state template_sampler_state; + + /* Constant state objects. */ + /* Vertex shaders. */ + void *vs; /**< Vertex shader which passes {pos, generic} to the output.*/ + + /* Fragment shaders. */ + /* The shader at index i outputs color to color buffers 0,1,...,i-1. */ + void *fs_col[PIPE_MAX_COLOR_BUFS+1]; + + /* FS which outputs a color from a texture, + where the index is PIPE_TEXTURE_* to be sampled. */ + void *fs_texfetch_col[PIPE_MAX_TEXTURE_TYPES]; + + /* FS which outputs a depth from a texture, + where the index is PIPE_TEXTURE_* to be sampled. */ + void *fs_texfetch_depth[PIPE_MAX_TEXTURE_TYPES]; + + /* Blend state. */ + void *blend_write_color; /**< blend state with writemask of RGBA */ + void *blend_keep_color; /**< blend state with writemask of 0 */ + + /* Depth stencil alpha state. */ + void *dsa_write_depth_stencil; + void *dsa_write_depth_keep_stencil; + void *dsa_keep_depth_stencil; + void *dsa_keep_depth_write_stencil; + + void *velem_state; + + /* Sampler state for clamping to a miplevel. */ + void *sampler_state[PIPE_MAX_TEXTURE_LEVELS * 2]; + + /* Rasterizer state. */ + void *rs_state; + + /* Viewport state. */ + struct pipe_viewport_state viewport; + + /* Clip state. */ + struct pipe_clip_state clip; + + /* Destination surface dimensions. */ + unsigned dst_width; + unsigned dst_height; +}; + +static void blitter_draw_rectangle(struct blitter_context *blitter, + unsigned x, unsigned y, + unsigned width, unsigned height, + float depth, + enum blitter_attrib_type type, + const float attrib[4]); + + +struct blitter_context *util_blitter_create(struct pipe_context *pipe) +{ + struct blitter_context_priv *ctx; + struct pipe_blend_state blend; + struct pipe_depth_stencil_alpha_state dsa; + struct pipe_rasterizer_state rs_state; + struct pipe_sampler_state *sampler_state; + struct pipe_vertex_element velem[2]; + unsigned i; + + ctx = CALLOC_STRUCT(blitter_context_priv); + if (!ctx) + return NULL; + + ctx->base.pipe = pipe; + ctx->base.draw_rectangle = blitter_draw_rectangle; + + /* init state objects for them to be considered invalid */ + ctx->base.saved_blend_state = INVALID_PTR; + ctx->base.saved_dsa_state = INVALID_PTR; + ctx->base.saved_rs_state = INVALID_PTR; + ctx->base.saved_fs = INVALID_PTR; + ctx->base.saved_vs = INVALID_PTR; + ctx->base.saved_velem_state = INVALID_PTR; + ctx->base.saved_fb_state.nr_cbufs = ~0; + ctx->base.saved_num_sampler_views = ~0; + ctx->base.saved_num_sampler_states = ~0; + ctx->base.saved_num_vertex_buffers = ~0; + + /* blend state objects */ + memset(&blend, 0, sizeof(blend)); + ctx->blend_keep_color = pipe->create_blend_state(pipe, &blend); + + blend.rt[0].colormask = PIPE_MASK_RGBA; + ctx->blend_write_color = pipe->create_blend_state(pipe, &blend); + + /* depth stencil alpha state objects */ + memset(&dsa, 0, sizeof(dsa)); + ctx->dsa_keep_depth_stencil = + pipe->create_depth_stencil_alpha_state(pipe, &dsa); + + dsa.depth.enabled = 1; + dsa.depth.writemask = 1; + dsa.depth.func = PIPE_FUNC_ALWAYS; + ctx->dsa_write_depth_keep_stencil = + pipe->create_depth_stencil_alpha_state(pipe, &dsa); + + dsa.stencil[0].enabled = 1; + dsa.stencil[0].func = PIPE_FUNC_ALWAYS; + dsa.stencil[0].fail_op = PIPE_STENCIL_OP_REPLACE; + dsa.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE; + dsa.stencil[0].zfail_op = PIPE_STENCIL_OP_REPLACE; + dsa.stencil[0].valuemask = 0xff; + dsa.stencil[0].writemask = 0xff; + ctx->dsa_write_depth_stencil = + pipe->create_depth_stencil_alpha_state(pipe, &dsa); + + + dsa.depth.enabled = 0; + dsa.depth.writemask = 0; + ctx->dsa_keep_depth_write_stencil = + pipe->create_depth_stencil_alpha_state(pipe, &dsa); + + /* sampler state */ + sampler_state = &ctx->template_sampler_state; + sampler_state->wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + sampler_state->wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + sampler_state->wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + sampler_state->normalized_coords = TRUE; + /* The sampler state objects which sample from a specified mipmap level + * are created on-demand. */ + + /* rasterizer state */ + memset(&rs_state, 0, sizeof(rs_state)); + rs_state.cull_face = PIPE_FACE_NONE; + rs_state.gl_rasterization_rules = 1; + rs_state.flatshade = 1; + ctx->rs_state = pipe->create_rasterizer_state(pipe, &rs_state); + + /* vertex elements state */ + memset(&velem[0], 0, sizeof(velem[0]) * 2); + for (i = 0; i < 2; i++) { + velem[i].src_offset = i * 4 * sizeof(float); + velem[i].instance_divisor = 0; + velem[i].vertex_buffer_index = 0; + velem[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; + } + ctx->velem_state = pipe->create_vertex_elements_state(pipe, 2, &velem[0]); + + /* fragment shaders are created on-demand */ + + /* vertex shader */ + { + const uint semantic_names[] = { TGSI_SEMANTIC_POSITION, + TGSI_SEMANTIC_GENERIC }; + const uint semantic_indices[] = { 0, 0 }; + ctx->vs = + util_make_vertex_passthrough_shader(pipe, 2, semantic_names, + semantic_indices); + } + + /* set invariant vertex coordinates */ + for (i = 0; i < 4; i++) + ctx->vertices[i][0][3] = 1; /*v.w*/ + + /* create the vertex buffer */ + ctx->vbuf = pipe_user_buffer_create(ctx->base.pipe->screen, + ctx->vertices, + sizeof(ctx->vertices), + PIPE_BIND_VERTEX_BUFFER); + + return &ctx->base; +} + +void util_blitter_destroy(struct blitter_context *blitter) +{ + struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; + struct pipe_context *pipe = blitter->pipe; + int i; + + pipe->delete_blend_state(pipe, ctx->blend_write_color); + pipe->delete_blend_state(pipe, ctx->blend_keep_color); + pipe->delete_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil); + pipe->delete_depth_stencil_alpha_state(pipe, + ctx->dsa_write_depth_keep_stencil); + pipe->delete_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_stencil); + pipe->delete_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_write_stencil); + + pipe->delete_rasterizer_state(pipe, ctx->rs_state); + pipe->delete_vs_state(pipe, ctx->vs); + pipe->delete_vertex_elements_state(pipe, ctx->velem_state); + + for (i = 0; i < PIPE_MAX_TEXTURE_TYPES; i++) { + if (ctx->fs_texfetch_col[i]) + pipe->delete_fs_state(pipe, ctx->fs_texfetch_col[i]); + if (ctx->fs_texfetch_depth[i]) + pipe->delete_fs_state(pipe, ctx->fs_texfetch_depth[i]); + } + + for (i = 0; i <= PIPE_MAX_COLOR_BUFS; i++) + if (ctx->fs_col[i]) + pipe->delete_fs_state(pipe, ctx->fs_col[i]); + + for (i = 0; i < PIPE_MAX_TEXTURE_LEVELS * 2; i++) + if (ctx->sampler_state[i]) + pipe->delete_sampler_state(pipe, ctx->sampler_state[i]); + + pipe_resource_reference(&ctx->vbuf, NULL); + FREE(ctx); +} + +static void blitter_check_saved_CSOs(struct blitter_context_priv *ctx) +{ + if (ctx->base.running) { + _debug_printf("u_blitter: Caught recursion on save. " + "This is a driver bug.\n"); + } + ctx->base.running = TRUE; + + /* make sure these CSOs have been saved */ + assert(ctx->base.saved_blend_state != INVALID_PTR && + ctx->base.saved_dsa_state != INVALID_PTR && + ctx->base.saved_rs_state != INVALID_PTR && + ctx->base.saved_fs != INVALID_PTR && + ctx->base.saved_vs != INVALID_PTR && + ctx->base.saved_velem_state != INVALID_PTR); +} + +static void blitter_restore_CSOs(struct blitter_context_priv *ctx) +{ + struct pipe_context *pipe = ctx->base.pipe; + unsigned i; + + /* restore the state objects which are always required to be saved */ + pipe->bind_blend_state(pipe, ctx->base.saved_blend_state); + pipe->bind_depth_stencil_alpha_state(pipe, ctx->base.saved_dsa_state); + pipe->bind_rasterizer_state(pipe, ctx->base.saved_rs_state); + pipe->bind_fs_state(pipe, ctx->base.saved_fs); + pipe->bind_vs_state(pipe, ctx->base.saved_vs); + pipe->bind_vertex_elements_state(pipe, ctx->base.saved_velem_state); + + ctx->base.saved_blend_state = INVALID_PTR; + ctx->base.saved_dsa_state = INVALID_PTR; + ctx->base.saved_rs_state = INVALID_PTR; + ctx->base.saved_fs = INVALID_PTR; + ctx->base.saved_vs = INVALID_PTR; + ctx->base.saved_velem_state = INVALID_PTR; + + pipe->set_stencil_ref(pipe, &ctx->base.saved_stencil_ref); + pipe->set_viewport_state(pipe, &ctx->base.saved_viewport); + pipe->set_clip_state(pipe, &ctx->base.saved_clip); + + /* restore the state objects which are required to be saved before copy/fill + */ + if (ctx->base.saved_fb_state.nr_cbufs != ~0) { + pipe->set_framebuffer_state(pipe, &ctx->base.saved_fb_state); + util_unreference_framebuffer_state(&ctx->base.saved_fb_state); + ctx->base.saved_fb_state.nr_cbufs = ~0; + } + + if (ctx->base.saved_num_sampler_states != ~0) { + pipe->bind_fragment_sampler_states(pipe, + ctx->base.saved_num_sampler_states, + ctx->base.saved_sampler_states); + ctx->base.saved_num_sampler_states = ~0; + } + + if (ctx->base.saved_num_sampler_views != ~0) { + pipe->set_fragment_sampler_views(pipe, + ctx->base.saved_num_sampler_views, + ctx->base.saved_sampler_views); + + for (i = 0; i < ctx->base.saved_num_sampler_views; i++) + pipe_sampler_view_reference(&ctx->base.saved_sampler_views[i], + NULL); + + ctx->base.saved_num_sampler_views = ~0; + } + + if (ctx->base.saved_num_vertex_buffers != ~0) { + pipe->set_vertex_buffers(pipe, + ctx->base.saved_num_vertex_buffers, + ctx->base.saved_vertex_buffers); + + for (i = 0; i < ctx->base.saved_num_vertex_buffers; i++) { + if (ctx->base.saved_vertex_buffers[i].buffer) { + pipe_resource_reference(&ctx->base.saved_vertex_buffers[i].buffer, + NULL); + } + } + ctx->base.saved_num_vertex_buffers = ~0; + } + + if (!ctx->base.running) { + _debug_printf("u_blitter: Caught recursion on restore. " + "This is a driver bug.\n"); + } + ctx->base.running = FALSE; +} + +static void blitter_set_rectangle(struct blitter_context_priv *ctx, + unsigned x1, unsigned y1, + unsigned x2, unsigned y2, + float depth) +{ + int i; + + /* set vertex positions */ + ctx->vertices[0][0][0] = (float)x1 / ctx->dst_width * 2.0f - 1.0f; /*v0.x*/ + ctx->vertices[0][0][1] = (float)y1 / ctx->dst_height * 2.0f - 1.0f; /*v0.y*/ + + ctx->vertices[1][0][0] = (float)x2 / ctx->dst_width * 2.0f - 1.0f; /*v1.x*/ + ctx->vertices[1][0][1] = (float)y1 / ctx->dst_height * 2.0f - 1.0f; /*v1.y*/ + + ctx->vertices[2][0][0] = (float)x2 / ctx->dst_width * 2.0f - 1.0f; /*v2.x*/ + ctx->vertices[2][0][1] = (float)y2 / ctx->dst_height * 2.0f - 1.0f; /*v2.y*/ + + ctx->vertices[3][0][0] = (float)x1 / ctx->dst_width * 2.0f - 1.0f; /*v3.x*/ + ctx->vertices[3][0][1] = (float)y2 / ctx->dst_height * 2.0f - 1.0f; /*v3.y*/ + + for (i = 0; i < 4; i++) + ctx->vertices[i][0][2] = depth; /*z*/ + + /* viewport */ + ctx->viewport.scale[0] = 0.5f * ctx->dst_width; + ctx->viewport.scale[1] = 0.5f * ctx->dst_height; + ctx->viewport.scale[2] = 1.0f; + ctx->viewport.scale[3] = 1.0f; + ctx->viewport.translate[0] = 0.5f * ctx->dst_width; + ctx->viewport.translate[1] = 0.5f * ctx->dst_height; + ctx->viewport.translate[2] = 0.0f; + ctx->viewport.translate[3] = 0.0f; + ctx->base.pipe->set_viewport_state(ctx->base.pipe, &ctx->viewport); + + /* clip */ + ctx->base.pipe->set_clip_state(ctx->base.pipe, &ctx->clip); +} + +static void blitter_set_clear_color(struct blitter_context_priv *ctx, + const float *rgba) +{ + int i; + + if (rgba) { + for (i = 0; i < 4; i++) { + ctx->vertices[i][1][0] = rgba[0]; + ctx->vertices[i][1][1] = rgba[1]; + ctx->vertices[i][1][2] = rgba[2]; + ctx->vertices[i][1][3] = rgba[3]; + } + } else { + for (i = 0; i < 4; i++) { + ctx->vertices[i][1][0] = 0; + ctx->vertices[i][1][1] = 0; + ctx->vertices[i][1][2] = 0; + ctx->vertices[i][1][3] = 0; + } + } +} + +static void get_texcoords(struct pipe_resource *src, + unsigned level, + unsigned x1, unsigned y1, + unsigned x2, unsigned y2, + boolean normalized, float out[4]) +{ + if(normalized) + { + out[0] = x1 / (float)u_minify(src->width0, level); + out[1] = y1 / (float)u_minify(src->height0, level); + out[2] = x2 / (float)u_minify(src->width0, level); + out[3] = y2 / (float)u_minify(src->height0, level); + } + else + { + out[0] = x1; + out[1] = y1; + out[2] = x2; + out[3] = y2; + } +} + +static void set_texcoords_in_vertices(const float coord[4], + float *out, unsigned stride) +{ + out[0] = coord[0]; /*t0.s*/ + out[1] = coord[1]; /*t0.t*/ + out += stride; + out[0] = coord[2]; /*t1.s*/ + out[1] = coord[1]; /*t1.t*/ + out += stride; + out[0] = coord[2]; /*t2.s*/ + out[1] = coord[3]; /*t2.t*/ + out += stride; + out[0] = coord[0]; /*t3.s*/ + out[1] = coord[3]; /*t3.t*/ +} + +static void blitter_set_texcoords_2d(struct blitter_context_priv *ctx, + struct pipe_resource *src, + unsigned level, + unsigned x1, unsigned y1, + unsigned x2, unsigned y2) +{ + unsigned i; + float coord[4]; + + get_texcoords(src, level, x1, y1, x2, y2, TRUE, coord); + set_texcoords_in_vertices(coord, &ctx->vertices[0][1][0], 8); + + for (i = 0; i < 4; i++) { + ctx->vertices[i][1][2] = 0; /*r*/ + ctx->vertices[i][1][3] = 1; /*q*/ + } +} + +static void blitter_set_texcoords_3d(struct blitter_context_priv *ctx, + struct pipe_resource *src, + unsigned level, + unsigned zslice, + unsigned x1, unsigned y1, + unsigned x2, unsigned y2) +{ + int i; + float r = zslice / (float)u_minify(src->depth0, level); + + blitter_set_texcoords_2d(ctx, src, level, x1, y1, x2, y2); + + for (i = 0; i < 4; i++) + ctx->vertices[i][1][2] = r; /*r*/ +} + +static void blitter_set_texcoords_cube(struct blitter_context_priv *ctx, + struct pipe_resource *src, + unsigned level, unsigned face, + unsigned x1, unsigned y1, + unsigned x2, unsigned y2) +{ + int i; + float coord[4]; + float st[4][2]; + + get_texcoords(src, level, x1, y1, x2, y2, TRUE, coord); + set_texcoords_in_vertices(coord, &st[0][0], 2); + + util_map_texcoords2d_onto_cubemap(face, + /* pointer, stride in floats */ + &st[0][0], 2, + &ctx->vertices[0][1][0], 8); + + for (i = 0; i < 4; i++) + ctx->vertices[i][1][3] = 1; /*q*/ +} + +static void blitter_set_dst_dimensions(struct blitter_context_priv *ctx, + unsigned width, unsigned height) +{ + ctx->dst_width = width; + ctx->dst_height = height; +} + +static INLINE +void **blitter_get_sampler_state(struct blitter_context_priv *ctx, + int miplevel, boolean normalized) +{ + struct pipe_context *pipe = ctx->base.pipe; + struct pipe_sampler_state *sampler_state = &ctx->template_sampler_state; + + assert(miplevel < PIPE_MAX_TEXTURE_LEVELS); + + /* Create the sampler state on-demand. */ + if (!ctx->sampler_state[miplevel * 2 + normalized]) { + sampler_state->lod_bias = miplevel; + sampler_state->min_lod = miplevel; + sampler_state->max_lod = miplevel; + sampler_state->normalized_coords = normalized; + + ctx->sampler_state[miplevel * 2 + normalized] = pipe->create_sampler_state(pipe, + sampler_state); + } + + /* Return void** so that it can be passed to bind_fragment_sampler_states + * directly. */ + return &ctx->sampler_state[miplevel * 2 + normalized]; +} + +static INLINE +void *blitter_get_fs_col(struct blitter_context_priv *ctx, unsigned num_cbufs) +{ + struct pipe_context *pipe = ctx->base.pipe; + + assert(num_cbufs <= PIPE_MAX_COLOR_BUFS); + + if (!ctx->fs_col[num_cbufs]) + ctx->fs_col[num_cbufs] = + util_make_fragment_cloneinput_shader(pipe, num_cbufs, + TGSI_SEMANTIC_GENERIC, + TGSI_INTERPOLATE_LINEAR); + + return ctx->fs_col[num_cbufs]; +} + +/** Convert PIPE_TEXTURE_x to TGSI_TEXTURE_x */ +static unsigned +pipe_tex_to_tgsi_tex(enum pipe_texture_target pipe_tex_target) +{ + switch (pipe_tex_target) { + case PIPE_TEXTURE_1D: + return TGSI_TEXTURE_1D; + case PIPE_TEXTURE_2D: + return TGSI_TEXTURE_2D; + case PIPE_TEXTURE_RECT: + return TGSI_TEXTURE_RECT; + case PIPE_TEXTURE_3D: + return TGSI_TEXTURE_3D; + case PIPE_TEXTURE_CUBE: + return TGSI_TEXTURE_CUBE; + default: + assert(0 && "unexpected texture target"); + return TGSI_TEXTURE_UNKNOWN; + } +} + + +static INLINE +void *blitter_get_fs_texfetch_col(struct blitter_context_priv *ctx, + unsigned tex_target) +{ + struct pipe_context *pipe = ctx->base.pipe; + + assert(tex_target < PIPE_MAX_TEXTURE_TYPES); + + /* Create the fragment shader on-demand. */ + if (!ctx->fs_texfetch_col[tex_target]) { + unsigned tgsi_tex = pipe_tex_to_tgsi_tex(tex_target); + + ctx->fs_texfetch_col[tex_target] = + util_make_fragment_tex_shader(pipe, tgsi_tex, TGSI_INTERPOLATE_LINEAR); + } + + return ctx->fs_texfetch_col[tex_target]; +} + +static INLINE +void *blitter_get_fs_texfetch_depth(struct blitter_context_priv *ctx, + unsigned tex_target) +{ + struct pipe_context *pipe = ctx->base.pipe; + + assert(tex_target < PIPE_MAX_TEXTURE_TYPES); + + /* Create the fragment shader on-demand. */ + if (!ctx->fs_texfetch_depth[tex_target]) { + unsigned tgsi_tex = pipe_tex_to_tgsi_tex(tex_target); + + ctx->fs_texfetch_depth[tex_target] = + util_make_fragment_tex_shader_writedepth(pipe, tgsi_tex, + TGSI_INTERPOLATE_LINEAR); + } + + return ctx->fs_texfetch_depth[tex_target]; +} + +static void blitter_draw_rectangle(struct blitter_context *blitter, + unsigned x1, unsigned y1, + unsigned x2, unsigned y2, + float depth, + enum blitter_attrib_type type, + const float attrib[4]) +{ + struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; + + switch (type) { + case UTIL_BLITTER_ATTRIB_COLOR: + blitter_set_clear_color(ctx, attrib); + break; + + case UTIL_BLITTER_ATTRIB_TEXCOORD: + set_texcoords_in_vertices(attrib, &ctx->vertices[0][1][0], 8); + break; + + default:; + } + + blitter_set_rectangle(ctx, x1, y1, x2, y2, depth); + ctx->base.pipe->redefine_user_buffer(ctx->base.pipe, ctx->vbuf, + 0, ctx->vbuf->width0); + util_draw_vertex_buffer(ctx->base.pipe, NULL, ctx->vbuf, 0, + PIPE_PRIM_TRIANGLE_FAN, 4, 2); +} + +static void util_blitter_clear_custom(struct blitter_context *blitter, + unsigned width, unsigned height, + unsigned num_cbufs, + unsigned clear_buffers, + const float *rgba, + double depth, unsigned stencil, + void *custom_blend, void *custom_dsa) +{ + struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; + struct pipe_context *pipe = ctx->base.pipe; + struct pipe_stencil_ref sr = { { 0 } }; + + assert(num_cbufs <= PIPE_MAX_COLOR_BUFS); + + blitter_check_saved_CSOs(ctx); + + /* bind CSOs */ + if (custom_blend) { + pipe->bind_blend_state(pipe, custom_blend); + } else if (clear_buffers & PIPE_CLEAR_COLOR) { + pipe->bind_blend_state(pipe, ctx->blend_write_color); + } else { + pipe->bind_blend_state(pipe, ctx->blend_keep_color); + } + + if (custom_dsa) { + pipe->bind_depth_stencil_alpha_state(pipe, custom_dsa); + } else if ((clear_buffers & PIPE_CLEAR_DEPTHSTENCIL) == PIPE_CLEAR_DEPTHSTENCIL) { + pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_stencil); + } else if (clear_buffers & PIPE_CLEAR_DEPTH) { + pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_keep_stencil); + } else if (clear_buffers & PIPE_CLEAR_STENCIL) { + pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_write_stencil); + } else { + pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil); + } + + sr.ref_value[0] = stencil & 0xff; + pipe->set_stencil_ref(pipe, &sr); + + pipe->bind_rasterizer_state(pipe, ctx->rs_state); + pipe->bind_vertex_elements_state(pipe, ctx->velem_state); + pipe->bind_fs_state(pipe, blitter_get_fs_col(ctx, num_cbufs)); + pipe->bind_vs_state(pipe, ctx->vs); + + blitter_set_dst_dimensions(ctx, width, height); + blitter->draw_rectangle(blitter, 0, 0, width, height, depth, + UTIL_BLITTER_ATTRIB_COLOR, rgba); + blitter_restore_CSOs(ctx); +} + +void util_blitter_clear(struct blitter_context *blitter, + unsigned width, unsigned height, + unsigned num_cbufs, + unsigned clear_buffers, + const float *rgba, + double depth, unsigned stencil) +{ + util_blitter_clear_custom(blitter, width, height, num_cbufs, + clear_buffers, rgba, depth, stencil, + NULL, NULL); +} + +void util_blitter_clear_depth_custom(struct blitter_context *blitter, + unsigned width, unsigned height, + double depth, void *custom_dsa) +{ + const float rgba[4] = {0, 0, 0, 0}; + util_blitter_clear_custom(blitter, width, height, 0, + 0, rgba, depth, 0, NULL, custom_dsa); +} + +static +boolean is_overlap(unsigned sx1, unsigned sx2, unsigned sy1, unsigned sy2, + unsigned dx1, unsigned dx2, unsigned dy1, unsigned dy2) +{ + return sx1 < dx2 && sx2 > dx1 && sy1 < dy2 && sy2 > dy1; +} + +void util_blitter_copy_region(struct blitter_context *blitter, + struct pipe_resource *dst, + unsigned dstlevel, + unsigned dstx, unsigned dsty, unsigned dstz, + struct pipe_resource *src, + unsigned srclevel, + const struct pipe_box *srcbox, + boolean ignore_stencil) +{ + struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; + struct pipe_context *pipe = ctx->base.pipe; + struct pipe_screen *screen = pipe->screen; + struct pipe_surface *dstsurf, surf_templ; + struct pipe_framebuffer_state fb_state; + struct pipe_sampler_view viewTempl, *view; + unsigned bind; + unsigned width = srcbox->width; + unsigned height = srcbox->height; + boolean is_stencil, is_depth; + boolean normalized; + + /* Give up if textures are not set. */ + assert(dst && src); + if (!dst || !src) + return; + + /* Sanity checks. */ + if (dst == src) { + assert(!is_overlap(srcbox->x, srcbox->x + width, srcbox->y, srcbox->y + height, + dstx, dstx + width, dsty, dsty + height)); + } + assert(src->target < PIPE_MAX_TEXTURE_TYPES); + /* XXX should handle 3d regions */ + assert(srcbox->depth == 1); + + /* Is this a ZS format? */ + is_depth = util_format_get_component_bits(src->format, UTIL_FORMAT_COLORSPACE_ZS, 0) != 0; + is_stencil = util_format_get_component_bits(src->format, UTIL_FORMAT_COLORSPACE_ZS, 1) != 0; + + if (is_depth || is_stencil) + bind = PIPE_BIND_DEPTH_STENCIL; + else + bind = PIPE_BIND_RENDER_TARGET; + + /* Check if we can sample from and render to the surfaces. */ + /* (assuming copying a stencil buffer is not possible) */ + if ((!ignore_stencil && is_stencil) || + !screen->is_format_supported(screen, dst->format, dst->target, + dst->nr_samples, bind) || + !screen->is_format_supported(screen, src->format, src->target, + src->nr_samples, PIPE_BIND_SAMPLER_VIEW)) { + ctx->base.running = TRUE; + util_resource_copy_region(pipe, dst, dstlevel, dstx, dsty, dstz, + src, srclevel, srcbox); + ctx->base.running = FALSE; + return; + } + + /* Get surface. */ + memset(&surf_templ, 0, sizeof(surf_templ)); + u_surface_default_template(&surf_templ, dst, bind); + surf_templ.format = util_format_linear(dst->format); + surf_templ.u.tex.level = dstlevel; + surf_templ.u.tex.first_layer = dstz; + surf_templ.u.tex.last_layer = dstz; + dstsurf = pipe->create_surface(pipe, dst, &surf_templ); + + /* Check whether the states are properly saved. */ + blitter_check_saved_CSOs(ctx); + assert(blitter->saved_fb_state.nr_cbufs != ~0); + assert(blitter->saved_num_sampler_views != ~0); + assert(blitter->saved_num_sampler_states != ~0); + + /* Initialize framebuffer state. */ + fb_state.width = dstsurf->width; + fb_state.height = dstsurf->height; + + if (is_depth) { + pipe->bind_blend_state(pipe, ctx->blend_keep_color); + pipe->bind_depth_stencil_alpha_state(pipe, + ctx->dsa_write_depth_keep_stencil); + pipe->bind_fs_state(pipe, + blitter_get_fs_texfetch_depth(ctx, src->target)); + + fb_state.nr_cbufs = 0; + fb_state.zsbuf = dstsurf; + } else { + pipe->bind_blend_state(pipe, ctx->blend_write_color); + pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil); + pipe->bind_fs_state(pipe, + blitter_get_fs_texfetch_col(ctx, src->target)); + + fb_state.nr_cbufs = 1; + fb_state.cbufs[0] = dstsurf; + fb_state.zsbuf = 0; + } + + normalized = src->target != PIPE_TEXTURE_RECT; + + /* Initialize sampler view. */ + u_sampler_view_default_template(&viewTempl, src, util_format_linear(src->format)); + view = pipe->create_sampler_view(pipe, src, &viewTempl); + + /* Set rasterizer state, shaders, and textures. */ + pipe->bind_rasterizer_state(pipe, ctx->rs_state); + pipe->bind_vs_state(pipe, ctx->vs); + pipe->bind_fragment_sampler_states(pipe, 1, + blitter_get_sampler_state(ctx, srclevel, normalized)); + pipe->bind_vertex_elements_state(pipe, ctx->velem_state); + pipe->set_fragment_sampler_views(pipe, 1, &view); + pipe->set_framebuffer_state(pipe, &fb_state); + + blitter_set_dst_dimensions(ctx, dstsurf->width, dstsurf->height); + + switch (src->target) { + /* Draw the quad with the draw_rectangle callback. */ + case PIPE_TEXTURE_1D: + case PIPE_TEXTURE_2D: + case PIPE_TEXTURE_RECT: + { + /* Set texture coordinates. */ + float coord[4]; + get_texcoords(src, srclevel, srcbox->x, srcbox->y, + srcbox->x+width, srcbox->y+height, normalized, coord); + + /* Draw. */ + blitter->draw_rectangle(blitter, dstx, dsty, dstx+width, dsty+height, 0, + UTIL_BLITTER_ATTRIB_TEXCOORD, coord); + } + break; + + /* Draw the quad with the generic codepath. */ + case PIPE_TEXTURE_3D: + case PIPE_TEXTURE_CUBE: + /* Set texture coordinates. */ + if (src->target == PIPE_TEXTURE_3D) + blitter_set_texcoords_3d(ctx, src, srclevel, srcbox->z, + srcbox->x, srcbox->y, + srcbox->x + width, srcbox->y + height); + else + blitter_set_texcoords_cube(ctx, src, srclevel, srcbox->z, + srcbox->x, srcbox->y, + srcbox->x + width, srcbox->y + height); + + /* Draw. */ + blitter_set_rectangle(ctx, dstx, dsty, dstx+width, dsty+height, 0); + ctx->base.pipe->redefine_user_buffer(ctx->base.pipe, ctx->vbuf, + 0, ctx->vbuf->width0); + util_draw_vertex_buffer(ctx->base.pipe, NULL, ctx->vbuf, 0, + PIPE_PRIM_TRIANGLE_FAN, 4, 2); + break; + + default: + assert(0); + return; + } + + blitter_restore_CSOs(ctx); + + pipe_surface_reference(&dstsurf, NULL); + pipe_sampler_view_reference(&view, NULL); +} + +/* Clear a region of a color surface to a constant value. */ +void util_blitter_clear_render_target(struct blitter_context *blitter, + struct pipe_surface *dstsurf, + const float *rgba, + unsigned dstx, unsigned dsty, + unsigned width, unsigned height) +{ + struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; + struct pipe_context *pipe = ctx->base.pipe; + struct pipe_framebuffer_state fb_state; + + assert(dstsurf->texture); + if (!dstsurf->texture) + return; + + /* check the saved state */ + blitter_check_saved_CSOs(ctx); + assert(blitter->saved_fb_state.nr_cbufs != ~0); + + /* bind CSOs */ + pipe->bind_blend_state(pipe, ctx->blend_write_color); + pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil); + pipe->bind_rasterizer_state(pipe, ctx->rs_state); + pipe->bind_fs_state(pipe, blitter_get_fs_col(ctx, 1)); + pipe->bind_vs_state(pipe, ctx->vs); + pipe->bind_vertex_elements_state(pipe, ctx->velem_state); + + /* set a framebuffer state */ + fb_state.width = dstsurf->width; + fb_state.height = dstsurf->height; + fb_state.nr_cbufs = 1; + fb_state.cbufs[0] = dstsurf; + fb_state.zsbuf = 0; + pipe->set_framebuffer_state(pipe, &fb_state); + + blitter_set_dst_dimensions(ctx, dstsurf->width, dstsurf->height); + blitter->draw_rectangle(blitter, dstx, dsty, dstx+width, dsty+height, 0, + UTIL_BLITTER_ATTRIB_COLOR, rgba); + blitter_restore_CSOs(ctx); +} + +/* Clear a region of a depth stencil surface. */ +void util_blitter_clear_depth_stencil(struct blitter_context *blitter, + struct pipe_surface *dstsurf, + unsigned clear_flags, + double depth, + unsigned stencil, + unsigned dstx, unsigned dsty, + unsigned width, unsigned height) +{ + struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; + struct pipe_context *pipe = ctx->base.pipe; + struct pipe_framebuffer_state fb_state; + struct pipe_stencil_ref sr = { { 0 } }; + + assert(dstsurf->texture); + if (!dstsurf->texture) + return; + + /* check the saved state */ + blitter_check_saved_CSOs(ctx); + assert(blitter->saved_fb_state.nr_cbufs != ~0); + + /* bind CSOs */ + pipe->bind_blend_state(pipe, ctx->blend_keep_color); + if ((clear_flags & PIPE_CLEAR_DEPTHSTENCIL) == PIPE_CLEAR_DEPTHSTENCIL) { + sr.ref_value[0] = stencil & 0xff; + pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_stencil); + pipe->set_stencil_ref(pipe, &sr); + } + else if (clear_flags & PIPE_CLEAR_DEPTH) { + pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_keep_stencil); + } + else if (clear_flags & PIPE_CLEAR_STENCIL) { + sr.ref_value[0] = stencil & 0xff; + pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_write_stencil); + pipe->set_stencil_ref(pipe, &sr); + } + else + /* hmm that should be illegal probably, or make it a no-op somewhere */ + pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil); + + pipe->bind_rasterizer_state(pipe, ctx->rs_state); + pipe->bind_fs_state(pipe, blitter_get_fs_col(ctx, 0)); + pipe->bind_vs_state(pipe, ctx->vs); + pipe->bind_vertex_elements_state(pipe, ctx->velem_state); + + /* set a framebuffer state */ + fb_state.width = dstsurf->width; + fb_state.height = dstsurf->height; + fb_state.nr_cbufs = 0; + fb_state.cbufs[0] = 0; + fb_state.zsbuf = dstsurf; + pipe->set_framebuffer_state(pipe, &fb_state); + + blitter_set_dst_dimensions(ctx, dstsurf->width, dstsurf->height); + blitter->draw_rectangle(blitter, dstx, dsty, dstx+width, dsty+height, depth, + UTIL_BLITTER_ATTRIB_NONE, NULL); + blitter_restore_CSOs(ctx); +} + +/* draw a rectangle across a region using a custom dsa stage - for r600g */ +void util_blitter_custom_depth_stencil(struct blitter_context *blitter, + struct pipe_surface *zsurf, + struct pipe_surface *cbsurf, + void *dsa_stage, float depth) +{ + struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; + struct pipe_context *pipe = ctx->base.pipe; + struct pipe_framebuffer_state fb_state; + + assert(zsurf->texture); + if (!zsurf->texture) + return; + + /* check the saved state */ + blitter_check_saved_CSOs(ctx); + assert(blitter->saved_fb_state.nr_cbufs != ~0); + + /* bind CSOs */ + pipe->bind_blend_state(pipe, ctx->blend_write_color); + pipe->bind_depth_stencil_alpha_state(pipe, dsa_stage); + + pipe->bind_rasterizer_state(pipe, ctx->rs_state); + pipe->bind_fs_state(pipe, blitter_get_fs_col(ctx, 0)); + pipe->bind_vs_state(pipe, ctx->vs); + pipe->bind_vertex_elements_state(pipe, ctx->velem_state); + + /* set a framebuffer state */ + fb_state.width = zsurf->width; + fb_state.height = zsurf->height; + fb_state.nr_cbufs = 1; + if (cbsurf) { + fb_state.cbufs[0] = cbsurf; + fb_state.nr_cbufs = 1; + } else { + fb_state.cbufs[0] = NULL; + fb_state.nr_cbufs = 0; + } + fb_state.zsbuf = zsurf; + pipe->set_framebuffer_state(pipe, &fb_state); + + blitter_set_dst_dimensions(ctx, zsurf->width, zsurf->height); + blitter->draw_rectangle(blitter, 0, 0, zsurf->width, zsurf->height, depth, + UTIL_BLITTER_ATTRIB_NONE, NULL); + blitter_restore_CSOs(ctx); +} |