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xserver/glamor/glamor_render.c

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/*
* Copyright © 2009 Intel Corporation
*
* 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, sublicense,
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*
* Authors:
* Eric Anholt <eric@anholt.net>
* Zhigang Gong <zhigang.gong@linux.intel.com>
* Junyan He <junyan.he@linux.intel.com>
*
*/
/** @file glamor_render.c
*
* Render acceleration implementation
*/
#include <dix-config.h>
#include <assert.h>
#include "os/bug_priv.h"
#include "glamor_priv.h"
#include "mipict.h"
#include "fbpict.h"
#if 0
//#define DEBUGF(str, ...) do {} while(0)
#define DEBUGF(str, ...) ErrorF(str, ##__VA_ARGS__)
//#define DEBUGRegionPrint(x) do {} while (0)
#define DEBUGRegionPrint RegionPrint
#endif
static struct blendinfo composite_op_info[] = {
[PictOpClear] = {0, 0, GL_ZERO, GL_ZERO},
[PictOpSrc] = {0, 0, GL_ONE, GL_ZERO},
[PictOpDst] = {0, 0, GL_ZERO, GL_ONE},
[PictOpOver] = {0, 1, GL_ONE, GL_ONE_MINUS_SRC_ALPHA},
[PictOpOverReverse] = {1, 0, GL_ONE_MINUS_DST_ALPHA, GL_ONE},
[PictOpIn] = {1, 0, GL_DST_ALPHA, GL_ZERO},
[PictOpInReverse] = {0, 1, GL_ZERO, GL_SRC_ALPHA},
[PictOpOut] = {1, 0, GL_ONE_MINUS_DST_ALPHA, GL_ZERO},
[PictOpOutReverse] = {0, 1, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA},
[PictOpAtop] = {1, 1, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA},
[PictOpAtopReverse] = {1, 1, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA},
[PictOpXor] = {1, 1, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA},
[PictOpAdd] = {0, 0, GL_ONE, GL_ONE},
};
#define RepeatFix 10
static GLuint
glamor_create_composite_fs(glamor_screen_private *glamor_priv, struct shader_key *key, Bool enable_rel_sampler)
{
const char *repeat_define =
"#define RepeatNone 0\n"
"#define RepeatNormal 1\n"
"#define RepeatPad 2\n"
"#define RepeatReflect 3\n"
"#define RepeatFix 10\n"
"uniform int source_repeat_mode;\n"
"uniform int mask_repeat_mode;\n";
const char *relocate_texture =
"vec2 rel_tex_coord(vec2 texture, vec4 wh, int repeat) \n"
"{\n"
" vec2 rel_tex; \n"
" rel_tex = texture * wh.xy; \n"
" if (repeat == RepeatFix + RepeatNone)\n"
" return rel_tex; \n"
" else if (repeat == RepeatFix + RepeatNormal) \n"
" rel_tex = floor(rel_tex) + (fract(rel_tex) / wh.xy); \n"
" else if (repeat == RepeatFix + RepeatPad) { \n"
" if (rel_tex.x >= 1.0) \n"
" rel_tex.x = 1.0 - wh.z * wh.x / 2.; \n"
" else if (rel_tex.x < 0.0) \n"
" rel_tex.x = 0.0; \n"
" if (rel_tex.y >= 1.0) \n"
" rel_tex.y = 1.0 - wh.w * wh.y / 2.; \n"
" else if (rel_tex.y < 0.0) \n"
" rel_tex.y = 0.0; \n"
" rel_tex = rel_tex / wh.xy; \n"
" } else if (repeat == RepeatFix + RepeatReflect) {\n"
" if ((1.0 - mod(abs(floor(rel_tex.x)), 2.0)) < 0.001)\n"
" rel_tex.x = 2.0 - (1.0 - fract(rel_tex.x)) / wh.x;\n"
" else \n"
" rel_tex.x = fract(rel_tex.x) / wh.x;\n"
" if ((1.0 - mod(abs(floor(rel_tex.y)), 2.0)) < 0.001)\n"
" rel_tex.y = 2.0 - (1.0 - fract(rel_tex.y)) / wh.y;\n"
" else \n"
" rel_tex.y = fract(rel_tex.y) / wh.y;\n"
" } \n"
" return rel_tex; \n"
"}\n";
/* The texture and the pixmap size is not match eaxctly, so can't sample it directly.
* rel_sampler will recalculate the texture coords.*/
const char *rel_sampler =
" vec4 rel_sampler_rgba(sampler2D tex_image, vec2 tex, vec4 wh, int repeat)\n"
"{\n"
" if (repeat >= RepeatFix) {\n"
" tex = rel_tex_coord(tex, wh, repeat);\n"
" if (repeat == RepeatFix + RepeatNone) {\n"
" if (tex.x < 0.0 || tex.x >= 1.0 || \n"
" tex.y < 0.0 || tex.y >= 1.0)\n"
" return vec4(0.0, 0.0, 0.0, 0.0);\n"
" tex = (fract(tex) / wh.xy);\n"
" }\n"
" }\n"
" return texture(tex_image, tex);\n"
"}\n"
" vec4 rel_sampler_rgbx(sampler2D tex_image, vec2 tex, vec4 wh, int repeat)\n"
"{\n"
" if (repeat >= RepeatFix) {\n"
" tex = rel_tex_coord(tex, wh, repeat);\n"
" if (repeat == RepeatFix + RepeatNone) {\n"
" if (tex.x < 0.0 || tex.x >= 1.0 || \n"
" tex.y < 0.0 || tex.y >= 1.0)\n"
" return vec4(0.0, 0.0, 0.0, 0.0);\n"
" tex = (fract(tex) / wh.xy);\n"
" }\n"
" }\n"
" return vec4(texture(tex_image, tex).rgb, 1.0);\n"
"}\n";
const char *stub_rel_sampler =
" vec4 rel_sampler_rgba(sampler2D tex_image, vec2 tex, vec4 wh, int repeat)\n"
"{\n"
" return texture(tex_image, tex);\n"
"}\n"
" vec4 rel_sampler_rgbx(sampler2D tex_image, vec2 tex, vec4 wh, int repeat)\n"
"{\n"
" return vec4(texture(tex_image, tex).rgb, 1.0);\n"
"}\n";
const char *source_solid_fetch =
"uniform vec4 source;\n"
"vec4 get_source()\n"
"{\n"
" return source;\n"
"}\n";
const char *source_alpha_pixmap_fetch =
"in vec2 source_texture;\n"
"uniform sampler2D source_sampler;\n"
"uniform vec4 source_wh;"
"vec4 get_source()\n"
"{\n"
" return rel_sampler_rgba(source_sampler, source_texture,\n"
" source_wh, source_repeat_mode);\n"
"}\n";
const char *source_pixmap_fetch =
"in vec2 source_texture;\n"
"uniform sampler2D source_sampler;\n"
"uniform vec4 source_wh;\n"
"vec4 get_source()\n"
"{\n"
" return rel_sampler_rgbx(source_sampler, source_texture,\n"
" source_wh, source_repeat_mode);\n"
"}\n";
const char *mask_none =
"vec4 get_mask()\n"
"{\n"
" return vec4(0.0, 0.0, 0.0, 1.0);\n"
"}\n";
const char *mask_solid_fetch =
"uniform vec4 mask;\n"
"vec4 get_mask()\n"
"{\n"
" return mask;\n"
"}\n";
const char *mask_alpha_pixmap_fetch =
"in vec2 mask_texture;\n"
"uniform sampler2D mask_sampler;\n"
"uniform vec4 mask_wh;\n"
"vec4 get_mask()\n"
"{\n"
" return rel_sampler_rgba(mask_sampler, mask_texture,\n"
" mask_wh, mask_repeat_mode);\n"
"}\n";
const char *mask_pixmap_fetch =
"in vec2 mask_texture;\n"
"uniform sampler2D mask_sampler;\n"
"uniform vec4 mask_wh;\n"
"vec4 get_mask()\n"
"{\n"
" return rel_sampler_rgbx(mask_sampler, mask_texture,\n"
" mask_wh, mask_repeat_mode);\n"
"}\n";
const char *dest_swizzle_default =
"vec4 dest_swizzle(vec4 color)\n"
"{"
" return color;"
"}";
const char *dest_swizzle_alpha_to_red =
"vec4 dest_swizzle(vec4 color)\n"
"{"
" float undef;\n"
" return vec4(color.a, undef, undef, undef);"
"}";
const char *dest_swizzle_ignore_alpha =
"vec4 dest_swizzle(vec4 color)\n"
"{"
" return vec4(color.xyz, 1.0);"
"}";
const char *in_normal =
"void main()\n"
"{\n"
" frag_color = dest_swizzle(get_source() * get_mask().a);\n"
"}\n";
const char *in_ca_source =
"void main()\n"
"{\n"
" frag_color = dest_swizzle(get_source() * get_mask());\n"
"}\n";
const char *in_ca_alpha =
"void main()\n"
"{\n"
" frag_color = dest_swizzle(get_source().a * get_mask());\n"
"}\n";
const char *in_ca_dual_blend =
"out vec4 color0;\n"
"out vec4 color1;\n"
"void main()\n"
"{\n"
" color0 = dest_swizzle(get_source() * get_mask());\n"
" color1 = dest_swizzle(get_source().a * get_mask());\n"
"}\n";
const char *in_ca_dual_blend_gles2 =
"void main()\n"
"{\n"
" gl_FragColor = dest_swizzle(get_source() * get_mask());\n"
" gl_SecondaryFragColorEXT = dest_swizzle(get_source().a * get_mask());\n"
"}\n";
const char *header_ca_dual_blend_gles2 =
"#version 100\n"
"#extension GL_EXT_blend_func_extended : require\n"
GLAMOR_COMPAT_DEFINES_FS;
char *source;
const char *source_fetch;
const char *mask_fetch = "";
const char *in;
const char *header;
const char *header_norm = glamor_priv->glsl_version > 120 ?
"#version 130\n" :
glamor_priv->use_gpu_shader4 ?
"#version 120\n#extension GL_EXT_gpu_shader4 : require\n" GLAMOR_COMPAT_DEFINES_FS :
"#version 120\n" GLAMOR_COMPAT_DEFINES_FS;
const char *header_es = glamor_priv->glsl_version > 100 ? "#version 300 es\n" : "#version 100\n" GLAMOR_COMPAT_DEFINES_FS;
const char *dest_swizzle;
GLuint prog;
switch (key->source) {
case SHADER_SOURCE_SOLID:
source_fetch = source_solid_fetch;
break;
case SHADER_SOURCE_TEXTURE_ALPHA:
source_fetch = source_alpha_pixmap_fetch;
break;
case SHADER_SOURCE_TEXTURE:
source_fetch = source_pixmap_fetch;
break;
default:
FatalError("Bad composite shader source");
}
switch (key->mask) {
case SHADER_MASK_NONE:
mask_fetch = mask_none;
break;
case SHADER_MASK_SOLID:
mask_fetch = mask_solid_fetch;
break;
case SHADER_MASK_TEXTURE_ALPHA:
mask_fetch = mask_alpha_pixmap_fetch;
break;
case SHADER_MASK_TEXTURE:
mask_fetch = mask_pixmap_fetch;
break;
default:
FatalError("Bad composite shader mask");
}
/* If we're storing to an a8 texture but our texture format is
* GL_RED because of a core context, then we need to make sure to
* put the alpha into the red channel.
*/
switch (key->dest_swizzle) {
case SHADER_DEST_SWIZZLE_DEFAULT:
dest_swizzle = dest_swizzle_default;
break;
case SHADER_DEST_SWIZZLE_ALPHA_TO_RED:
dest_swizzle = dest_swizzle_alpha_to_red;
break;
case SHADER_DEST_SWIZZLE_IGNORE_ALPHA:
dest_swizzle = dest_swizzle_ignore_alpha;
break;
default:
FatalError("Bad composite shader dest swizzle");
}
header = glamor_priv->is_gles ? header_es : header_norm;
switch (key->in) {
case glamor_program_alpha_normal:
in = in_normal;
break;
case glamor_program_alpha_ca_first:
in = in_ca_source;
break;
case glamor_program_alpha_ca_second:
in = in_ca_alpha;
break;
case glamor_program_alpha_dual_blend:
in = in_ca_dual_blend;
break;
case glamor_program_alpha_dual_blend_gles2:
in = in_ca_dual_blend_gles2;
header = header_ca_dual_blend_gles2;
break;
default:
FatalError("Bad composite IN type");
}
XNFasprintf(&source,
"%s"
GLAMOR_DEFAULT_PRECISION
"%s%s%s%s%s%s%s%s", header, GLAMOR_COMPAT_DEFINES_FS,
repeat_define, relocate_texture,
enable_rel_sampler ? rel_sampler : stub_rel_sampler,
source_fetch, mask_fetch, dest_swizzle, in);
prog = glamor_compile_glsl_prog(GL_FRAGMENT_SHADER, source);
free(source);
return prog;
}
static GLuint
glamor_create_composite_vs(glamor_screen_private* priv, struct shader_key *key)
{
const char *main_opening =
"in vec4 v_position;\n"
"in vec4 v_texcoord0;\n"
"in vec4 v_texcoord1;\n"
"out vec2 source_texture;\n"
"out vec2 mask_texture;\n"
"void main()\n"
"{\n"
" gl_Position = v_position;\n";
const char *source_coords = " source_texture = v_texcoord0.xy;\n";
const char *mask_coords = " mask_texture = v_texcoord1.xy;\n";
const char *main_closing = "}\n";
const char *source_coords_setup = "";
const char *mask_coords_setup = "";
const char *version_gles2 = "#version 100\n";
const char *version_gles3 = "#version 300 es\n";
const char *version = priv->glsl_version > 120 ? "#version 130\n" : "#version 120\n";
const char *defines = priv->glsl_version > 120 ? "": GLAMOR_COMPAT_DEFINES_VS;
char *source;
GLuint prog;
if (key->source != SHADER_SOURCE_SOLID)
source_coords_setup = source_coords;
if (key->mask != SHADER_MASK_NONE && key->mask != SHADER_MASK_SOLID)
mask_coords_setup = mask_coords;
if (priv->is_gles)
version = version_gles2;
if (priv->is_gles && priv->glsl_version > 120)
version = version_gles3;
XNFasprintf(&source,
"%s"
GLAMOR_DEFAULT_PRECISION
"%s%s%s%s%s",
version, defines, main_opening, source_coords_setup,
mask_coords_setup, main_closing);
prog = glamor_compile_glsl_prog(GL_VERTEX_SHADER, source);
free(source);
return prog;
}
static void
glamor_create_composite_shader(ScreenPtr screen, struct shader_key *key,
glamor_composite_shader *shader)
{
GLuint vs, fs, prog;
GLint source_sampler_uniform_location, mask_sampler_uniform_location;
glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
Bool enable_rel_sampler = TRUE;
glamor_make_current(glamor_priv);
vs = glamor_create_composite_vs(glamor_priv, key);
if (vs == 0)
return;
fs = glamor_create_composite_fs(glamor_priv, key, enable_rel_sampler);
if (fs == 0)
return;
prog = glCreateProgram();
glAttachShader(prog, vs);
glAttachShader(prog, fs);
glDeleteShader(vs);
glDeleteShader(fs);
glBindAttribLocation(prog, GLAMOR_VERTEX_POS, "v_position");
glBindAttribLocation(prog, GLAMOR_VERTEX_SOURCE, "v_texcoord0");
glBindAttribLocation(prog, GLAMOR_VERTEX_MASK, "v_texcoord1");
if (key->in == glamor_program_alpha_dual_blend) {
glBindFragDataLocationIndexed(prog, 0, 0, "color0");
glBindFragDataLocationIndexed(prog, 0, 1, "color1");
}
if (!glamor_link_glsl_prog(screen, prog, "composite")) {
/* Failed to link the shader, try again without rel_sampler. */
enable_rel_sampler = FALSE;
glDetachShader(prog, fs);
fs = glamor_create_composite_fs(glamor_priv, key, enable_rel_sampler);
if (fs == 0)
return;
glAttachShader(prog, fs);
glDeleteShader(fs);
if (!glamor_link_glsl_prog(screen, prog, "composite")) {
glDeleteProgram(prog);
return;
}
}
shader->prog = prog;
glUseProgram(prog);
if (key->source == SHADER_SOURCE_SOLID) {
shader->source_uniform_location = glGetUniformLocation(prog, "source");
}
else {
source_sampler_uniform_location =
glGetUniformLocation(prog, "source_sampler");
glUniform1i(source_sampler_uniform_location, 0);
shader->source_wh = glGetUniformLocation(prog, "source_wh");
shader->source_repeat_mode =
glGetUniformLocation(prog, "source_repeat_mode");
}
if (key->mask != SHADER_MASK_NONE) {
if (key->mask == SHADER_MASK_SOLID) {
shader->mask_uniform_location = glGetUniformLocation(prog, "mask");
}
else {
mask_sampler_uniform_location =
glGetUniformLocation(prog, "mask_sampler");
glUniform1i(mask_sampler_uniform_location, 1);
shader->mask_wh = glGetUniformLocation(prog, "mask_wh");
shader->mask_repeat_mode =
glGetUniformLocation(prog, "mask_repeat_mode");
}
}
}
static glamor_composite_shader *
glamor_lookup_composite_shader(ScreenPtr screen, struct
shader_key
*key)
{
glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
glamor_composite_shader *shader;
shader = &glamor_priv->composite_shader[key->source][key->mask][key->in][key->dest_swizzle];
if (shader->prog == 0)
glamor_create_composite_shader(screen, key, shader);
return shader;
}
static GLenum
glamor_translate_blend_alpha_to_red(GLenum blend)
{
switch (blend) {
case GL_SRC_ALPHA:
return GL_SRC_COLOR;
case GL_DST_ALPHA:
return GL_DST_COLOR;
case GL_ONE_MINUS_SRC_ALPHA:
return GL_ONE_MINUS_SRC_COLOR;
case GL_ONE_MINUS_DST_ALPHA:
return GL_ONE_MINUS_DST_COLOR;
default:
return blend;
}
}
static Bool
glamor_set_composite_op(ScreenPtr screen,
CARD8 op, struct blendinfo *op_info_result,
PicturePtr dest, PicturePtr mask,
enum ca_state ca_state,
struct shader_key *key)
{
GLenum source_blend, dest_blend;
struct blendinfo *op_info;
if (op >= ARRAY_SIZE(composite_op_info)) {
glamor_fallback("unsupported render op %d \n", op);
return GL_FALSE;
}
op_info = &composite_op_info[op];
source_blend = op_info->source_blend;
dest_blend = op_info->dest_blend;
/* If there's no dst alpha channel, adjust the blend op so that we'll treat
* it as always 1.
*/
if (PICT_FORMAT_A(dest->format) == 0 && op_info->dest_alpha) {
if (source_blend == GL_DST_ALPHA)
source_blend = GL_ONE;
else if (source_blend == GL_ONE_MINUS_DST_ALPHA)
source_blend = GL_ZERO;
}
/* Set up the source alpha value for blending in component alpha mode. */
if (ca_state == CA_DUAL_BLEND) {
switch (dest_blend) {
case GL_SRC_ALPHA:
dest_blend = GL_SRC1_COLOR;
break;
case GL_ONE_MINUS_SRC_ALPHA:
dest_blend = GL_ONE_MINUS_SRC1_COLOR;
break;
}
} else if (mask && mask->componentAlpha
&& PICT_FORMAT_RGB(mask->format) != 0 && op_info->source_alpha) {
switch (dest_blend) {
case GL_SRC_ALPHA:
dest_blend = GL_SRC_COLOR;
break;
case GL_ONE_MINUS_SRC_ALPHA:
dest_blend = GL_ONE_MINUS_SRC_COLOR;
break;
}
}
/* If we're outputting our alpha to the red channel, then any
* reads of alpha for blending need to come from the red channel.
*/
if (key->dest_swizzle == SHADER_DEST_SWIZZLE_ALPHA_TO_RED) {
source_blend = glamor_translate_blend_alpha_to_red(source_blend);
dest_blend = glamor_translate_blend_alpha_to_red(dest_blend);
}
op_info_result->source_blend = source_blend;
op_info_result->dest_blend = dest_blend;
op_info_result->source_alpha = op_info->source_alpha;
op_info_result->dest_alpha = op_info->dest_alpha;
return TRUE;
}
static void
glamor_set_composite_texture(glamor_screen_private *glamor_priv, int unit,
PicturePtr picture,
PixmapPtr pixmap,
GLuint wh_location, GLuint repeat_location,
glamor_pixmap_private *dest_priv)
{
glamor_pixmap_private *pixmap_priv = glamor_get_pixmap_private(pixmap);
BUG_RETURN(!pixmap_priv);
glamor_pixmap_fbo *fbo = pixmap_priv->fbo;
float wh[4];
int repeat_type;
glamor_make_current(glamor_priv);
/* The red channel swizzling doesn't depend on whether we're using
* 'fbo' as source or mask as we must have the same answer in case
* the same fbo is being used for both. That means the mask
* channel will sometimes get red bits in the R channel, and
* sometimes get zero bits in the R channel, which is harmless.
*/
glamor_bind_texture(glamor_priv, GL_TEXTURE0 + unit, fbo,
dest_priv->fbo->is_red);
repeat_type = picture->repeatType;
switch (picture->repeatType) {
case RepeatNone:
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
break;
case RepeatNormal:
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
break;
case RepeatPad:
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
break;
case RepeatReflect:
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_MIRRORED_REPEAT);
break;
}
switch (picture->filter) {
default:
case PictFilterFast:
case PictFilterNearest:
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
break;
case PictFilterGood:
case PictFilterBest:
case PictFilterBilinear:
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
break;
}
/* Handle RepeatNone in the shader when the source is missing the
* alpha channel, as GL will return an alpha for 1 if the texture
* is RGB (no alpha), which we use for 16bpp textures.
*/
if (glamor_pixmap_priv_is_large(pixmap_priv) ||
(!PICT_FORMAT_A(picture->format) &&
repeat_type == RepeatNone && picture->transform)) {
glamor_pixmap_fbo_fix_wh_ratio(wh, pixmap, pixmap_priv);
glUniform4fv(wh_location, 1, wh);
repeat_type += RepeatFix;
}
glUniform1i(repeat_location, repeat_type);
}
static void
glamor_set_composite_solid(float *color, GLint uniform_location)
{
glUniform4fv(uniform_location, 1, color);
}
static char
glamor_get_picture_location(PicturePtr picture)
{
if (picture == NULL)
return ' ';
if (picture->pDrawable == NULL) {
switch (picture->pSourcePict->type) {
case SourcePictTypeSolidFill:
return 'c';
case SourcePictTypeLinear:
return 'l';
case SourcePictTypeRadial:
return 'r';
default:
return '?';
}
}
return glamor_get_drawable_location(picture->pDrawable);
}
static void *
glamor_setup_composite_vbo(ScreenPtr screen, int n_verts)
{
glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
int vert_size;
char *vbo_offset;
float *vb;
glamor_priv->render_nr_quads = 0;
glamor_priv->vb_stride = 2 * sizeof(float);
if (glamor_priv->has_source_coords)
glamor_priv->vb_stride += 2 * sizeof(float);
if (glamor_priv->has_mask_coords)
glamor_priv->vb_stride += 2 * sizeof(float);
vert_size = n_verts * glamor_priv->vb_stride;
glamor_make_current(glamor_priv);
vb = glamor_get_vbo_space(screen, vert_size, &vbo_offset);
glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT, GL_FALSE,
glamor_priv->vb_stride, vbo_offset);
glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
if (glamor_priv->has_source_coords) {
glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2,
GL_FLOAT, GL_FALSE,
glamor_priv->vb_stride,
vbo_offset + 2 * sizeof(float));
glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
}
if (glamor_priv->has_mask_coords) {
glVertexAttribPointer(GLAMOR_VERTEX_MASK, 2, GL_FLOAT, GL_FALSE,
glamor_priv->vb_stride,
vbo_offset + (glamor_priv->has_source_coords ?
4 : 2) * sizeof(float));
glEnableVertexAttribArray(GLAMOR_VERTEX_MASK);
}
return vb;
}
static void
glamor_flush_composite_rects(ScreenPtr screen)
{
glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
glamor_make_current(glamor_priv);
if (!glamor_priv->render_nr_quads)
return;
glamor_glDrawArrays_GL_QUADS(glamor_priv, glamor_priv->render_nr_quads);
}
static const int pict_format_combine_tab[][3] = {
{PICT_TYPE_ARGB, PICT_TYPE_A, PICT_TYPE_ARGB},
{PICT_TYPE_ABGR, PICT_TYPE_A, PICT_TYPE_ABGR},
};
static Bool
combine_pict_format(PictFormatShort * des, const PictFormatShort src,
const PictFormatShort mask, glamor_program_alpha in_ca)
{
PictFormatShort new_vis;
int src_type, mask_type, src_bpp;
int i;
if (src == mask) {
*des = src;
return TRUE;
}
src_bpp = PICT_FORMAT_BPP(src);
assert(src_bpp == PICT_FORMAT_BPP(mask));
new_vis = PICT_FORMAT_VIS(src) | PICT_FORMAT_VIS(mask);
switch (in_ca) {
case glamor_program_alpha_normal:
src_type = PICT_FORMAT_TYPE(src);
mask_type = PICT_TYPE_A;
break;
case glamor_program_alpha_ca_first:
src_type = PICT_FORMAT_TYPE(src);
mask_type = PICT_FORMAT_TYPE(mask);
break;
case glamor_program_alpha_ca_second:
src_type = PICT_TYPE_A;
mask_type = PICT_FORMAT_TYPE(mask);
break;
case glamor_program_alpha_dual_blend:
case glamor_program_alpha_dual_blend_gles2:
src_type = PICT_FORMAT_TYPE(src);
mask_type = PICT_FORMAT_TYPE(mask);
break;
default:
return FALSE;
}
if (src_type == mask_type) {
*des = PICT_VISFORMAT(src_bpp, src_type, new_vis);
return TRUE;
}
for (i = 0; i < ARRAY_SIZE(pict_format_combine_tab); i++) {
if ((src_type == pict_format_combine_tab[i][0]
&& mask_type == pict_format_combine_tab[i][1])
|| (src_type == pict_format_combine_tab[i][1]
&& mask_type == pict_format_combine_tab[i][0])) {
*des = PICT_VISFORMAT(src_bpp, pict_format_combine_tab[i]
[2], new_vis);
return TRUE;
}
}
return FALSE;
}
static void
glamor_set_normalize_tcoords_generic(PixmapPtr pixmap,
glamor_pixmap_private *priv,
int repeat_type,
float *matrix,
float xscale, float yscale,
int x1, int y1, int x2, int y2,
float *texcoords,
int stride)
{
if (!matrix && repeat_type == RepeatNone)
glamor_set_normalize_tcoords_ext(priv, xscale, yscale,
x1, y1,
x2, y2, texcoords, stride);
else if (matrix && repeat_type == RepeatNone)
glamor_set_transformed_normalize_tcoords_ext(priv, matrix, xscale,
yscale, x1, y1,
x2, y2,
texcoords, stride);
else if (!matrix && repeat_type != RepeatNone)
glamor_set_repeat_normalize_tcoords_ext(pixmap, priv, repeat_type,
xscale, yscale,
x1, y1,
x2, y2,
texcoords, stride);
else if (matrix && repeat_type != RepeatNone)
glamor_set_repeat_transformed_normalize_tcoords_ext(pixmap, priv, repeat_type,
matrix, xscale,
yscale, x1, y1, x2,
y2,
texcoords, stride);
}
/**
* Returns whether the general composite path supports this picture
* format for a pixmap that is permanently stored in an FBO (as
* opposed to the dynamic upload path).
*
* We could support many more formats by using GL_ARB_texture_view to
* parse the same bits as different formats. For now, we only support
* tweaking whether we sample the alpha bits, or just force them to 1.
*/
static Bool
glamor_render_format_is_supported(PicturePtr picture)
{
PictFormatShort storage_format;
glamor_screen_private *glamor_priv;
struct glamor_format *f;
/* Source-only pictures should always work */
if (!picture->pDrawable)
return TRUE;
glamor_priv = glamor_get_screen_private(picture->pDrawable->pScreen);
f = &glamor_priv->formats[glamor_drawable_effective_depth(picture->pDrawable)];
if (!f->rendering_supported)
return FALSE;
storage_format = f->render_format;
switch (picture->format) {
case PICT_a2r10g10b10:
return storage_format == PICT_x2r10g10b10;
case PICT_a8r8g8b8:
case PICT_x8r8g8b8:
return storage_format == PICT_a8r8g8b8 || storage_format == PICT_x8r8g8b8;
case PICT_a1r5g5b5:
return storage_format == PICT_x1r5g5b5;
default:
return picture->format == storage_format;
}
}
static Bool
render_op_uses_src_alpha(CARD8 op)
{
struct blendinfo *info = &composite_op_info[op];
switch (info->dest_blend) {
case GL_ONE_MINUS_SRC_ALPHA:
case GL_SRC_ALPHA:
return TRUE;
}
return FALSE;
}
static Bool
glamor_composite_choose_shader(CARD8 op,
PicturePtr source,
PicturePtr mask,
PicturePtr dest,
PixmapPtr source_pixmap,
PixmapPtr mask_pixmap,
PixmapPtr dest_pixmap,
glamor_pixmap_private *source_pixmap_priv,
glamor_pixmap_private *mask_pixmap_priv,
glamor_pixmap_private *dest_pixmap_priv,
struct shader_key *s_key,
glamor_composite_shader ** shader,
struct blendinfo *op_info,
PictFormatShort *psaved_source_format,
enum ca_state ca_state)
{
ScreenPtr screen = dest->pDrawable->pScreen;
glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
Bool source_needs_upload = FALSE;
Bool mask_needs_upload = FALSE;
PictFormatShort saved_source_format = 0;
struct shader_key key;
GLfloat source_solid_color[4];
GLfloat mask_solid_color[4];
Bool ret = FALSE;
if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(dest_pixmap_priv)) {
glamor_fallback("dest has no fbo.\n");
goto fail;
}
if (!glamor_render_format_is_supported(dest)) {
glamor_fallback("Unsupported dest picture format.\n");
goto fail;
}
memset(&key, 0, sizeof(key));
if (!source) {
key.source = SHADER_SOURCE_SOLID;
source_solid_color[0] = 0.0;
source_solid_color[1] = 0.0;
source_solid_color[2] = 0.0;
source_solid_color[3] = 0.0;
}
else if (!source->pDrawable) {
SourcePictPtr sp = source->pSourcePict;
if (sp->type == SourcePictTypeSolidFill) {
key.source = SHADER_SOURCE_SOLID;
glamor_get_rgba_from_color(&sp->solidFill.fullcolor,
source_solid_color);
}
else
goto fail;
}
else {
if (PICT_FORMAT_A(source->format))
key.source = SHADER_SOURCE_TEXTURE_ALPHA;
else
key.source = SHADER_SOURCE_TEXTURE;
}
if (mask) {
if (!mask->pDrawable) {
SourcePictPtr sp = mask->pSourcePict;
if (sp->type == SourcePictTypeSolidFill) {
key.mask = SHADER_MASK_SOLID;
glamor_get_rgba_from_color(&sp->solidFill.fullcolor,
mask_solid_color);
}
else
goto fail;
}
else {
if (PICT_FORMAT_A(mask->format))
key.mask = SHADER_MASK_TEXTURE_ALPHA;
else
key.mask = SHADER_MASK_TEXTURE;
}
if (!mask->componentAlpha) {
key.in = glamor_program_alpha_normal;
}
else {
if (op == PictOpClear)
key.mask = SHADER_MASK_NONE;
else if (glamor_priv->has_dual_blend) {
key.in = glamor_glsl_has_ints(glamor_priv) ?
glamor_program_alpha_dual_blend :
glamor_program_alpha_dual_blend_gles2;
}
else if (op == PictOpSrc || op == PictOpAdd
|| op == PictOpIn || op == PictOpOut
|| op == PictOpOverReverse)
key.in = glamor_program_alpha_ca_second;
else if (op == PictOpOutReverse || op == PictOpInReverse) {
key.in = glamor_program_alpha_ca_first;
}
else {
glamor_fallback("Unsupported component alpha op: %d\n", op);
goto fail;
}
}
}
else {
key.mask = SHADER_MASK_NONE;
}
if (dest_pixmap->drawable.bitsPerPixel <= 8 &&
glamor_priv->formats[8].format == GL_RED) {
key.dest_swizzle = SHADER_DEST_SWIZZLE_ALPHA_TO_RED;
} else {
if (dest_pixmap->drawable.depth == 32 &&
glamor_drawable_effective_depth(dest->pDrawable) == 24 &&
!render_op_uses_src_alpha(op))
key.dest_swizzle = SHADER_DEST_SWIZZLE_IGNORE_ALPHA;
else
key.dest_swizzle = SHADER_DEST_SWIZZLE_DEFAULT;
}
if (source && source->alphaMap) {
glamor_fallback("source alphaMap\n");
goto fail;
}
if (mask && mask->alphaMap) {
glamor_fallback("mask alphaMap\n");
goto fail;
}
if (key.source == SHADER_SOURCE_TEXTURE ||
key.source == SHADER_SOURCE_TEXTURE_ALPHA) {
if (source_pixmap == dest_pixmap) {
/* XXX source and the dest share the same texture.
* Does it need special handle? */
glamor_fallback("source == dest\n");
}
if (source_pixmap_priv->gl_fbo == GLAMOR_FBO_UNATTACHED) {
source_needs_upload = TRUE;
}
}
if (key.mask == SHADER_MASK_TEXTURE ||
key.mask == SHADER_MASK_TEXTURE_ALPHA) {
if (mask_pixmap == dest_pixmap) {
glamor_fallback("mask == dest\n");
goto fail;
}
if (mask_pixmap_priv->gl_fbo == GLAMOR_FBO_UNATTACHED) {
mask_needs_upload = TRUE;
}
}
if (source_needs_upload && mask_needs_upload
&& source_pixmap == mask_pixmap) {
if (source->format != mask->format) {
saved_source_format = source->format;
if (!combine_pict_format(&source->format, source->format,
mask->format, key.in)) {
glamor_fallback("combine source %x mask %x failed.\n",
source->format, mask->format);
goto fail;
}
/* XXX
* By default, glamor_upload_picture_to_texture will wire alpha to 1
* if one picture doesn't have alpha. So we don't do that again in
* rendering function. But here is a special case, as source and
* mask share the same texture but may have different formats. For
* example, source doesn't have alpha, but mask has alpha. Then the
* texture will have the alpha value for the mask. And will not wire
* to 1 for the source. In this case, we have to use different shader
* to wire the source's alpha to 1.
*
* But this may cause a potential problem if the source's repeat mode
* is REPEAT_NONE, and if the source is smaller than the dest, then
* for the region not covered by the source may be painted incorrectly.
* because we wire the alpha to 1.
*
**/
if (!PICT_FORMAT_A(saved_source_format)
&& PICT_FORMAT_A(mask->format))
key.source = SHADER_SOURCE_TEXTURE;
if (!PICT_FORMAT_A(mask->format)
&& PICT_FORMAT_A(saved_source_format))
key.mask = SHADER_MASK_TEXTURE;
}
if (!glamor_upload_picture_to_texture(source)) {
glamor_fallback("Failed to upload source texture.\n");
goto fail;
}
mask_needs_upload = FALSE;
}
else {
if (source_needs_upload) {
if (!glamor_upload_picture_to_texture(source)) {
glamor_fallback("Failed to upload source texture.\n");
goto fail;
}
} else {
if (source && !glamor_render_format_is_supported(source)) {
glamor_fallback("Unsupported source picture format.\n");
goto fail;
}
}
if (mask_needs_upload) {
if (!glamor_upload_picture_to_texture(mask)) {
glamor_fallback("Failed to upload mask texture.\n");
goto fail;
}
} else if (mask) {
if (!glamor_render_format_is_supported(mask)) {
glamor_fallback("Unsupported mask picture format.\n");
goto fail;
}
}
}
/* If the source and mask are two differently-formatted views of
* the same pixmap bits, and the pixmap was already uploaded (so
* the dynamic code above doesn't apply), then fall back to
* software. We should use texture views to fix this properly.
*/
if (source_pixmap && source_pixmap == mask_pixmap &&
source->format != mask->format) {
goto fail;
}
if (!glamor_set_composite_op(screen, op, op_info, dest, mask, ca_state,
&key)) {
goto fail;
}
*shader = glamor_lookup_composite_shader(screen, &key);
if ((*shader)->prog == 0) {
glamor_fallback("no shader program for this render acccel mode\n");
goto fail;
}
if (key.source == SHADER_SOURCE_SOLID)
memcpy(&(*shader)->source_solid_color[0],
source_solid_color, 4 * sizeof(float));
else {
(*shader)->source_pixmap = source_pixmap;
(*shader)->source = source;
}
if (key.mask == SHADER_MASK_SOLID)
memcpy(&(*shader)->mask_solid_color[0],
mask_solid_color, 4 * sizeof(float));
else {
(*shader)->mask_pixmap = mask_pixmap;
(*shader)->mask = mask;
}
ret = TRUE;
memcpy(s_key, &key, sizeof(key));
*psaved_source_format = saved_source_format;
goto done;
fail:
if (saved_source_format)
source->format = saved_source_format;
done:
return ret;
}
static void
glamor_composite_set_shader_blend(glamor_screen_private *glamor_priv,
glamor_pixmap_private *dest_priv,
struct shader_key *key,
glamor_composite_shader *shader,
struct blendinfo *op_info)
{
glamor_make_current(glamor_priv);
glUseProgram(shader->prog);
if (key->source == SHADER_SOURCE_SOLID) {
glamor_set_composite_solid(shader->source_solid_color,
shader->source_uniform_location);
}
else {
glamor_set_composite_texture(glamor_priv, 0,
shader->source,
shader->source_pixmap, shader->source_wh,
shader->source_repeat_mode,
dest_priv);
}
if (key->mask != SHADER_MASK_NONE) {
if (key->mask == SHADER_MASK_SOLID) {
glamor_set_composite_solid(shader->mask_solid_color,
shader->mask_uniform_location);
}
else {
glamor_set_composite_texture(glamor_priv, 1,
shader->mask,
shader->mask_pixmap, shader->mask_wh,
shader->mask_repeat_mode,
dest_priv);
}
}
if (!glamor_priv->is_gles)
glDisable(GL_COLOR_LOGIC_OP);
if (op_info->source_blend == GL_ONE && op_info->dest_blend == GL_ZERO) {
glDisable(GL_BLEND);
}
else {
glEnable(GL_BLEND);
glBlendFunc(op_info->source_blend, op_info->dest_blend);
}
}
static Bool
glamor_composite_with_shader(CARD8 op,
PicturePtr source,
PicturePtr mask,
PicturePtr dest,
PixmapPtr source_pixmap,
PixmapPtr mask_pixmap,
PixmapPtr dest_pixmap,
glamor_pixmap_private *source_pixmap_priv,
glamor_pixmap_private *mask_pixmap_priv,
glamor_pixmap_private *dest_pixmap_priv,
int nrect, glamor_composite_rect_t *rects,
enum ca_state ca_state)
{
ScreenPtr screen = dest->pDrawable->pScreen;
glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
GLfloat dst_xscale, dst_yscale;
GLfloat mask_xscale = 1, mask_yscale = 1, src_xscale = 1, src_yscale = 1;
struct shader_key key, key_ca;
int dest_x_off, dest_y_off;
int source_x_off, source_y_off;
int mask_x_off, mask_y_off;
PictFormatShort saved_source_format = 0;
float src_matrix[9], mask_matrix[9];
float *psrc_matrix = NULL, *pmask_matrix = NULL;
int nrect_max;
Bool ret = FALSE;
glamor_composite_shader *shader = NULL, *shader_ca = NULL;
struct blendinfo op_info, op_info_ca;
Bool restore_colormask = FALSE;
if (!glamor_composite_choose_shader(op, source, mask, dest,
source_pixmap, mask_pixmap, dest_pixmap,
source_pixmap_priv, mask_pixmap_priv,
dest_pixmap_priv,
&key, &shader, &op_info,
&saved_source_format, ca_state)) {
glamor_fallback("glamor_composite_choose_shader failed\n");
goto fail;
}
if (ca_state == CA_TWO_PASS) {
if (!glamor_composite_choose_shader(PictOpAdd, source, mask, dest,
source_pixmap, mask_pixmap, dest_pixmap,
source_pixmap_priv,
mask_pixmap_priv, dest_pixmap_priv,
&key_ca, &shader_ca, &op_info_ca,
&saved_source_format, ca_state)) {
glamor_fallback("glamor_composite_choose_shader failed\n");
goto fail;
}
}
glamor_make_current(glamor_priv);
if (ca_state != CA_TWO_PASS &&
key.dest_swizzle == SHADER_DEST_SWIZZLE_DEFAULT &&
dest_pixmap->drawable.depth == 32 &&
glamor_drawable_effective_depth(dest->pDrawable) == 24) {
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_FALSE);
restore_colormask = TRUE;
}
glamor_set_destination_pixmap_priv_nc(glamor_priv, dest_pixmap, dest_pixmap_priv);
glamor_composite_set_shader_blend(glamor_priv, dest_pixmap_priv, &key, shader, &op_info);
glamor_set_alu(dest->pDrawable, GXcopy);
glamor_priv->has_source_coords = key.source != SHADER_SOURCE_SOLID;
glamor_priv->has_mask_coords = (key.mask != SHADER_MASK_NONE &&
key.mask != SHADER_MASK_SOLID);
dest_pixmap = glamor_get_drawable_pixmap(dest->pDrawable);
dest_pixmap_priv = glamor_get_pixmap_private(dest_pixmap);
glamor_get_drawable_deltas(dest->pDrawable, dest_pixmap,
&dest_x_off, &dest_y_off);
pixmap_priv_get_dest_scale(dest_pixmap, dest_pixmap_priv, &dst_xscale, &dst_yscale);
if (glamor_priv->has_source_coords) {
glamor_get_drawable_deltas(source->pDrawable,
source_pixmap, &source_x_off, &source_y_off);
pixmap_priv_get_scale(source_pixmap_priv, &src_xscale, &src_yscale);
if (source->transform) {
psrc_matrix = src_matrix;
glamor_picture_get_matrixf(source, psrc_matrix);
}
}
if (glamor_priv->has_mask_coords) {
glamor_get_drawable_deltas(mask->pDrawable, mask_pixmap,
&mask_x_off, &mask_y_off);
pixmap_priv_get_scale(mask_pixmap_priv, &mask_xscale, &mask_yscale);
if (mask->transform) {
pmask_matrix = mask_matrix;
glamor_picture_get_matrixf(mask, pmask_matrix);
}
}
nrect_max = MIN(nrect, GLAMOR_COMPOSITE_VBO_VERT_CNT / 4);
if (nrect < 100) {
BoxRec bounds = glamor_start_rendering_bounds();
for (int i = 0; i < nrect; i++) {
BoxRec box = {
.x1 = rects[i].x_dst,
.y1 = rects[i].y_dst,
.x2 = rects[i].x_dst + rects[i].width,
.y2 = rects[i].y_dst + rects[i].height,
};
glamor_bounds_union_box(&bounds, &box);
}
if (bounds.x1 >= bounds.x2 || bounds.y1 >= bounds.y2)
goto disable_va;
glEnable(GL_SCISSOR_TEST);
glScissor(bounds.x1 + dest_x_off,
bounds.y1 + dest_y_off,
bounds.x2 - bounds.x1,
bounds.y2 - bounds.y1);
}
while (nrect) {
int mrect, rect_processed;
int vb_stride;
float *vertices;
mrect = nrect > nrect_max ? nrect_max : nrect;
vertices = glamor_setup_composite_vbo(screen, mrect * 4);
rect_processed = mrect;
vb_stride = glamor_priv->vb_stride / sizeof(float);
while (mrect--) {
INT16 x_source;
INT16 y_source;
INT16 x_mask;
INT16 y_mask;
INT16 x_dest;
INT16 y_dest;
CARD16 width;
CARD16 height;
x_dest = rects->x_dst + dest_x_off;
y_dest = rects->y_dst + dest_y_off;
x_source = rects->x_src + source_x_off;
y_source = rects->y_src + source_y_off;
x_mask = rects->x_mask + mask_x_off;
y_mask = rects->y_mask + mask_y_off;
width = rects->width;
height = rects->height;
DEBUGF
("dest(%d,%d) source(%d %d) mask (%d %d), width %d height %d \n",
x_dest, y_dest, x_source, y_source, x_mask, y_mask, width,
height);
glamor_set_normalize_vcoords_ext(dest_pixmap_priv, dst_xscale,
dst_yscale, x_dest, y_dest,
x_dest + width, y_dest + height,
vertices,
vb_stride);
vertices += 2;
if (key.source != SHADER_SOURCE_SOLID) {
glamor_set_normalize_tcoords_generic(source_pixmap,
source_pixmap_priv,
source->repeatType,
psrc_matrix, src_xscale,
src_yscale, x_source,
y_source, x_source + width,
y_source + height,
vertices, vb_stride);
vertices += 2;
}
if (key.mask != SHADER_MASK_NONE && key.mask != SHADER_MASK_SOLID) {
glamor_set_normalize_tcoords_generic(mask_pixmap,
mask_pixmap_priv,
mask->repeatType,
pmask_matrix, mask_xscale,
mask_yscale, x_mask,
y_mask, x_mask + width,
y_mask + height,
vertices, vb_stride);
vertices += 2;
}
glamor_priv->render_nr_quads++;
rects++;
/* We've incremented by one of our 4 verts, now do the other 3. */
vertices += 3 * vb_stride;
}
glamor_put_vbo_space(screen);
glamor_flush_composite_rects(screen);
nrect -= rect_processed;
if (ca_state == CA_TWO_PASS) {
glamor_composite_set_shader_blend(glamor_priv, dest_pixmap_priv,
&key_ca, shader_ca, &op_info_ca);
glamor_flush_composite_rects(screen);
if (nrect)
glamor_composite_set_shader_blend(glamor_priv, dest_pixmap_priv,
&key, shader, &op_info);
}
}
glDisable(GL_SCISSOR_TEST);
disable_va:
if (restore_colormask)
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
glDisableVertexAttribArray(GLAMOR_VERTEX_MASK);
glDisable(GL_BLEND);
DEBUGF("finish rendering.\n");
if (saved_source_format)
source->format = saved_source_format;
ret = TRUE;
fail:
if (mask_pixmap && glamor_pixmap_is_memory(mask_pixmap))
glamor_pixmap_destroy_fbo(mask_pixmap);
if (source_pixmap && glamor_pixmap_is_memory(source_pixmap))
glamor_pixmap_destroy_fbo(source_pixmap);
return ret;
}
static PicturePtr
glamor_convert_gradient_picture(ScreenPtr screen,
PicturePtr source,
int x_source,
int y_source, int width, int height)
{
PixmapPtr pixmap;
PicturePtr dst = NULL;
int error;
PictFormatPtr pFormat;
PictFormatShort format;
glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
if (source->pDrawable) {
pFormat = source->pFormat;
format = pFormat->format;
} else {
format = PICT_a8r8g8b8;
pFormat = PictureMatchFormat(screen, 32, format);
}
if (glamor_priv->enable_gradient_shader && !source->pDrawable) {
if (source->pSourcePict->type == SourcePictTypeLinear) {
dst = glamor_generate_linear_gradient_picture(screen,
source, x_source,
y_source, width,
height, format);
}
else if (source->pSourcePict->type == SourcePictTypeRadial) {
dst = glamor_generate_radial_gradient_picture(screen,
source, x_source,
y_source, width,
height, format);
}
if (dst) {
return dst;
}
}
pixmap = glamor_create_pixmap(screen,
width,
height,
PIXMAN_FORMAT_DEPTH(format),
GLAMOR_CREATE_PIXMAP_CPU);
if (!pixmap)
return NULL;
dst = CreatePicture(0,
&pixmap->drawable, pFormat, 0, 0, serverClient, &error);
glamor_destroy_pixmap(pixmap);
if (!dst)
return NULL;
ValidatePicture(dst);
fbComposite(PictOpSrc, source, NULL, dst, x_source, y_source,
0, 0, 0, 0, width, height);
return dst;
}
Bool
glamor_composite_clipped_region(CARD8 op,
PicturePtr source,
PicturePtr mask,
PicturePtr dest,
PixmapPtr source_pixmap,
PixmapPtr mask_pixmap,
PixmapPtr dest_pixmap,
RegionPtr region,
int x_source,
int y_source,
int x_mask, int y_mask, int x_dest, int y_dest)
{
glamor_pixmap_private *source_pixmap_priv = glamor_get_pixmap_private(source_pixmap);
glamor_pixmap_private *mask_pixmap_priv = glamor_get_pixmap_private(mask_pixmap);
glamor_pixmap_private *dest_pixmap_priv = glamor_get_pixmap_private(dest_pixmap);
glamor_screen_private *glamor_priv = glamor_get_screen_private(dest_pixmap->drawable.pScreen);
ScreenPtr screen = dest->pDrawable->pScreen;
PicturePtr temp_src = source, temp_mask = mask;
PixmapPtr temp_src_pixmap = source_pixmap;
PixmapPtr temp_mask_pixmap = mask_pixmap;
glamor_pixmap_private *temp_src_priv = source_pixmap_priv;
glamor_pixmap_private *temp_mask_priv = mask_pixmap_priv;
int x_temp_src, y_temp_src, x_temp_mask, y_temp_mask;
BoxPtr extent;
glamor_composite_rect_t rect[10];
glamor_composite_rect_t *prect = rect;
int prect_size = ARRAY_SIZE(rect);
int ok = FALSE;
int i;
int width;
int height;
BoxPtr box;
int nbox;
enum ca_state ca_state = CA_NONE;
extent = RegionExtents(region);
box = RegionRects(region);
nbox = RegionNumRects(region);
width = extent->x2 - extent->x1;
height = extent->y2 - extent->y1;
x_temp_src = x_source;
y_temp_src = y_source;
x_temp_mask = x_mask;
y_temp_mask = y_mask;
DEBUGF("clipped (%d %d) (%d %d) (%d %d) width %d height %d \n",
x_source, y_source, x_mask, y_mask, x_dest, y_dest, width, height);
/* Is the composite operation equivalent to a copy? */
if (source &&
!mask && !source->alphaMap && !dest->alphaMap
&& source->pDrawable && !source->transform
/* CopyArea is only defined with matching depths. */
&& dest->pDrawable->depth == source->pDrawable->depth
&& ((op == PictOpSrc
&& (source->format == dest->format
|| (PICT_FORMAT_COLOR(dest->format)
&& PICT_FORMAT_COLOR(source->format)
&& dest->format == PICT_FORMAT(PICT_FORMAT_BPP(source->format),
PICT_FORMAT_TYPE(source->format),
0,
PICT_FORMAT_R(source->format),
PICT_FORMAT_G(source->format),
PICT_FORMAT_B(source->format)))))
|| (op == PictOpOver
&& source->format == dest->format
&& !PICT_FORMAT_A(source->format)))
&& x_source >= 0 && y_source >= 0
&& (x_source + width) <= source->pDrawable->width
&& (y_source + height) <= source->pDrawable->height) {
x_source += source->pDrawable->x;
y_source += source->pDrawable->y;
x_dest += dest->pDrawable->x;
y_dest += dest->pDrawable->y;
glamor_copy(source->pDrawable, dest->pDrawable, NULL,
box, nbox, x_source - x_dest,
y_source - y_dest, FALSE, FALSE, 0, NULL);
ok = TRUE;
goto out;
}
/* XXX is it possible source mask have non-zero drawable.x/y? */
if (source
&& ((!source->pDrawable
&& (source->pSourcePict->type != SourcePictTypeSolidFill))
|| (source->pDrawable
&& !GLAMOR_PIXMAP_PRIV_HAS_FBO(source_pixmap_priv)
&& (source_pixmap->drawable.width != width
|| source_pixmap->drawable.height != height)))) {
temp_src =
glamor_convert_gradient_picture(screen, source,
extent->x1 + x_source - x_dest - dest->pDrawable->x,
extent->y1 + y_source - y_dest - dest->pDrawable->y,
width, height);
if (!temp_src) {
temp_src = source;
goto out;
}
temp_src_pixmap = (PixmapPtr) (temp_src->pDrawable);
temp_src_priv = glamor_get_pixmap_private(temp_src_pixmap);
x_temp_src = -extent->x1 + x_dest + dest->pDrawable->x;
y_temp_src = -extent->y1 + y_dest + dest->pDrawable->y;
}
if (mask
&&
((!mask->pDrawable
&& (mask->pSourcePict->type != SourcePictTypeSolidFill))
|| (mask->pDrawable && !GLAMOR_PIXMAP_PRIV_HAS_FBO(mask_pixmap_priv)
&& (mask_pixmap->drawable.width != width
|| mask_pixmap->drawable.height != height)))) {
/* XXX if mask->pDrawable is the same as source->pDrawable, we have an opportunity
* to do reduce one conversion. */
temp_mask =
glamor_convert_gradient_picture(screen, mask,
extent->x1 + x_mask - x_dest - dest->pDrawable->x,
extent->y1 + y_mask - y_dest - dest->pDrawable->y,
width, height);
if (!temp_mask) {
temp_mask = mask;
goto out;
}
temp_mask_pixmap = (PixmapPtr) (temp_mask->pDrawable);
temp_mask_priv = glamor_get_pixmap_private(temp_mask_pixmap);
x_temp_mask = -extent->x1 + x_dest + dest->pDrawable->x;
y_temp_mask = -extent->y1 + y_dest + dest->pDrawable->y;
}
if (mask && mask->componentAlpha) {
if (glamor_priv->has_dual_blend) {
ca_state = CA_DUAL_BLEND;
} else {
if (op == PictOpOver) {
if (glamor_pixmap_is_memory(mask_pixmap)) {
glamor_fallback("two pass not supported on memory pximaps\n");
goto out;
}
ca_state = CA_TWO_PASS;
op = PictOpOutReverse;
}
}
}
if (temp_src_pixmap == dest_pixmap) {
glamor_fallback("source and dest pixmaps are the same\n");
goto out;
}
if (temp_mask_pixmap == dest_pixmap) {
glamor_fallback("mask and dest pixmaps are the same\n");
goto out;
}
x_dest += dest->pDrawable->x;
y_dest += dest->pDrawable->y;
if (temp_src && temp_src->pDrawable) {
x_temp_src += temp_src->pDrawable->x;
y_temp_src += temp_src->pDrawable->y;
}
if (temp_mask && temp_mask->pDrawable) {
x_temp_mask += temp_mask->pDrawable->x;
y_temp_mask += temp_mask->pDrawable->y;
}
if (nbox > ARRAY_SIZE(rect)) {
prect = calloc(nbox, sizeof(*prect));
if (prect)
prect_size = nbox;
else {
prect = rect;
prect_size = ARRAY_SIZE(rect);
}
}
while (nbox) {
int box_cnt;
box_cnt = nbox > prect_size ? prect_size : nbox;
for (i = 0; i < box_cnt; i++) {
prect[i].x_src = box[i].x1 + x_temp_src - x_dest;
prect[i].y_src = box[i].y1 + y_temp_src - y_dest;
prect[i].x_mask = box[i].x1 + x_temp_mask - x_dest;
prect[i].y_mask = box[i].y1 + y_temp_mask - y_dest;
prect[i].x_dst = box[i].x1;
prect[i].y_dst = box[i].y1;
prect[i].width = box[i].x2 - box[i].x1;
prect[i].height = box[i].y2 - box[i].y1;
DEBUGF("dest %d %d \n", prect[i].x_dst, prect[i].y_dst);
}
ok = glamor_composite_with_shader(op, temp_src, temp_mask, dest,
temp_src_pixmap, temp_mask_pixmap, dest_pixmap,
temp_src_priv, temp_mask_priv,
dest_pixmap_priv,
box_cnt, prect, ca_state);
if (!ok)
break;
nbox -= box_cnt;
box += box_cnt;
}
if (prect != rect)
free(prect);
out:
if (temp_src != source)
FreePicture(temp_src, 0);
if (temp_mask != mask)
FreePicture(temp_mask, 0);
return ok;
}
void
glamor_composite(CARD8 op,
PicturePtr source,
PicturePtr mask,
PicturePtr dest,
INT16 x_source,
INT16 y_source,
INT16 x_mask,
INT16 y_mask,
INT16 x_dest, INT16 y_dest, CARD16 width, CARD16 height)
{
ScreenPtr screen = dest->pDrawable->pScreen;
PixmapPtr dest_pixmap = glamor_get_drawable_pixmap(dest->pDrawable);
PixmapPtr source_pixmap = NULL, mask_pixmap = NULL;
glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
RegionRec region;
BoxPtr extent;
int nbox, ok = FALSE;
int force_clip = 0;
if (source->pDrawable) {
source_pixmap = glamor_get_drawable_pixmap(source->pDrawable);
if (glamor_pixmap_drm_only(source_pixmap))
goto fail;
}
if (mask && mask->pDrawable) {
mask_pixmap = glamor_get_drawable_pixmap(mask->pDrawable);
if (glamor_pixmap_drm_only(mask_pixmap))
goto fail;
}
DEBUGF
("source pixmap %p (%d %d) mask(%d %d) dest(%d %d) width %d height %d \n",
source_pixmap, x_source, y_source, x_mask, y_mask, x_dest, y_dest,
width, height);
if (!glamor_pixmap_has_fbo(dest_pixmap))
goto fail;
if (op >= ARRAY_SIZE(composite_op_info)) {
glamor_fallback("Unsupported composite op %x\n", op);
goto fail;
}
if (mask && mask->componentAlpha && !glamor_priv->has_dual_blend) {
if (op == PictOpAtop
|| op == PictOpAtopReverse
|| op == PictOpXor || op >= PictOpSaturate) {
glamor_fallback("glamor_composite(): component alpha op %x\n", op);
goto fail;
}
}
if ((source && source->filter >= PictFilterConvolution)
|| (mask && mask->filter >= PictFilterConvolution)) {
glamor_fallback("glamor_composite(): unsupported filter\n");
goto fail;
}
if (!miComputeCompositeRegion(&region,
source, mask, dest,
x_source +
(source_pixmap ? source->pDrawable->x : 0),
y_source +
(source_pixmap ? source->pDrawable->y : 0),
x_mask +
(mask_pixmap ? mask->pDrawable->x : 0),
y_mask +
(mask_pixmap ? mask->pDrawable->y : 0),
x_dest + dest->pDrawable->x,
y_dest + dest->pDrawable->y, width, height)) {
return;
}
nbox = REGION_NUM_RECTS(&region);
DEBUGF("first clipped when compositing.\n");
DEBUGRegionPrint(&region);
extent = RegionExtents(&region);
if (nbox == 0)
return;
/* If destination is not a large pixmap, but the region is larger
* than texture size limitation, and source or mask is memory pixmap,
* then there may be need to load a large memory pixmap to a
* texture, and this is not permitted. Then we force to clip the
* destination and make sure latter will not upload a large memory
* pixmap. */
if (!glamor_check_fbo_size(glamor_priv,
extent->x2 - extent->x1, extent->y2 - extent->y1)
&& glamor_pixmap_is_large(dest_pixmap)
&& ((source_pixmap
&& (glamor_pixmap_is_memory(source_pixmap) ||
source->repeatType == RepeatPad))
|| (mask_pixmap &&
(glamor_pixmap_is_memory(mask_pixmap) ||
mask->repeatType == RepeatPad))
|| (!source_pixmap &&
(source->pSourcePict->type != SourcePictTypeSolidFill))
|| (!mask_pixmap && mask &&
mask->pSourcePict->type != SourcePictTypeSolidFill)))
force_clip = 1;
if (force_clip || glamor_pixmap_is_large(dest_pixmap)
|| (source_pixmap
&& glamor_pixmap_is_large(source_pixmap))
|| (mask_pixmap && glamor_pixmap_is_large(mask_pixmap)))
ok = glamor_composite_largepixmap_region(op,
source, mask, dest,
source_pixmap,
mask_pixmap,
dest_pixmap,
&region, force_clip,
x_source, y_source,
x_mask, y_mask,
x_dest, y_dest, width, height);
else
ok = glamor_composite_clipped_region(op, source,
mask, dest,
source_pixmap,
mask_pixmap,
dest_pixmap,
&region,
x_source, y_source,
x_mask, y_mask, x_dest, y_dest);
REGION_UNINIT(dest->pDrawable->pScreen, &region);
if (ok)
return;
fail:
glamor_fallback
("from picts %p:%p %dx%d / %p:%p %d x %d (%c,%c) to pict %p:%p %dx%d (%c)\n",
source, source->pDrawable,
source->pDrawable ? source->pDrawable->width : 0,
source->pDrawable ? source->pDrawable->height : 0, mask,
(!mask) ? NULL : mask->pDrawable,
(!mask || !mask->pDrawable) ? 0 : mask->pDrawable->width,
(!mask || !mask->pDrawable) ? 0 : mask->pDrawable->height,
glamor_get_picture_location(source),
glamor_get_picture_location(mask),
dest, dest->pDrawable,
dest->pDrawable->width, dest->pDrawable->height,
glamor_get_picture_location(dest));
if (glamor_prepare_access_picture_box(dest, GLAMOR_ACCESS_RW,
x_dest, y_dest, width, height) &&
glamor_prepare_access_picture_box(source, GLAMOR_ACCESS_RO,
x_source, y_source, width, height) &&
glamor_prepare_access_picture_box(mask, GLAMOR_ACCESS_RO,
x_mask, y_mask, width, height))
{
fbComposite(op,
source, mask, dest,
x_source, y_source,
x_mask, y_mask, x_dest, y_dest, width, height);
}
glamor_finish_access_picture(mask);
glamor_finish_access_picture(source);
glamor_finish_access_picture(dest);
}
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