diff options
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_blitter.c')
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_blitter.c | 1036 |
1 files changed, 1036 insertions, 0 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_blitter.c b/mesalib/src/gallium/auxiliary/util/u_blitter.c new file mode 100644 index 000000000..0d9ce9ff7 --- /dev/null +++ b/mesalib/src/gallium/auxiliary/util/u_blitter.c @@ -0,0 +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);
+}
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