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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 "glamor_priv.h"
#ifdef RENDER
#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(struct shader_key *key)
{
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 =
GLAMOR_DEFAULT_PRECISION
"vec2 rel_tex_coord(vec2 texture, vec4 wh, int repeat) \n"
"{\n"
" vec2 rel_tex; \n"
" rel_tex = texture * wh.xy; \n"
" if (repeat == RepeatNone)\n"
" return rel_tex; \n"
" else if (repeat == RepeatNormal) \n"
" rel_tex = floor(rel_tex) + (fract(rel_tex) / wh.xy); \n"
" else if(repeat == RepeatPad) { \n"
" if (rel_tex.x >= 1.0) rel_tex.x = 1.0 - wh.z * wh.x / 2.; \n"
" else if(rel_tex.x < 0.0) rel_tex.x = 0.0; \n"
" if (rel_tex.y >= 1.0) rel_tex.y = 1.0 - wh.w * wh.y / 2.; \n"
" else if(rel_tex.y < 0.0) rel_tex.y = 0.0; \n"
" rel_tex = rel_tex / wh.xy; \n"
" } \n"
" else if(repeat == 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(sampler2D tex_image, vec2 tex, vec4 wh, int repeat, int set_alpha)\n"
"{\n"
" tex = rel_tex_coord(tex, wh, repeat - RepeatFix);\n"
" if (repeat == RepeatFix) {\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, set_alpha);\n"
" tex = (fract(tex) / wh.xy);\n"
" }\n"
" if (set_alpha != 1)\n"
" return texture2D(tex_image, tex);\n"
" else\n"
" return vec4(texture2D(tex_image, tex).rgb, 1.0);\n"
"}\n";
const char *source_solid_fetch =
GLAMOR_DEFAULT_PRECISION
"uniform vec4 source;\n"
"vec4 get_source()\n"
"{\n"
" return source;\n"
"}\n";
const char *source_alpha_pixmap_fetch =
GLAMOR_DEFAULT_PRECISION
"varying vec2 source_texture;\n"
"uniform sampler2D source_sampler;\n"
"uniform vec4 source_wh;"
"vec4 get_source()\n"
"{\n"
" if (source_repeat_mode < RepeatFix)\n"
" return texture2D(source_sampler, source_texture);\n"
" else \n"
" return rel_sampler(source_sampler, source_texture,\n"
" source_wh, source_repeat_mode, 0);\n"
"}\n";
const char *source_pixmap_fetch =
GLAMOR_DEFAULT_PRECISION
"varying vec2 source_texture;\n"
"uniform sampler2D source_sampler;\n"
"uniform vec4 source_wh;\n"
"vec4 get_source()\n"
"{\n"
" if (source_repeat_mode < RepeatFix) \n"
" return vec4(texture2D(source_sampler, source_texture).rgb, 1);\n"
" else \n"
" return rel_sampler(source_sampler, source_texture,\n"
" source_wh, source_repeat_mode, 1);\n"
"}\n";
const char *mask_solid_fetch =
GLAMOR_DEFAULT_PRECISION
"uniform vec4 mask;\n"
"vec4 get_mask()\n"
"{\n"
" return mask;\n"
"}\n";
const char *mask_alpha_pixmap_fetch =
GLAMOR_DEFAULT_PRECISION
"varying vec2 mask_texture;\n"
"uniform sampler2D mask_sampler;\n"
"uniform vec4 mask_wh;\n"
"vec4 get_mask()\n"
"{\n"
" if (mask_repeat_mode < RepeatFix) \n"
" return texture2D(mask_sampler, mask_texture);\n"
" else \n"
" return rel_sampler(mask_sampler, mask_texture,\n"
" mask_wh, mask_repeat_mode, 0);\n"
"}\n";
const char *mask_pixmap_fetch =
GLAMOR_DEFAULT_PRECISION
"varying vec2 mask_texture;\n"
"uniform sampler2D mask_sampler;\n"
"uniform vec4 mask_wh;\n"
"vec4 get_mask()\n"
"{\n"
" if (mask_repeat_mode < RepeatFix) \n"
" return vec4(texture2D(mask_sampler, mask_texture).rgb, 1);\n"
" else \n"
" return rel_sampler(mask_sampler, mask_texture,\n"
" mask_wh, mask_repeat_mode, 1);\n"
"}\n";
const char *in_source_only =
GLAMOR_DEFAULT_PRECISION
"void main()\n"
"{\n"
" gl_FragColor = get_source();\n"
"}\n";
const char *in_normal =
GLAMOR_DEFAULT_PRECISION
"void main()\n"
"{\n"
" gl_FragColor = get_source() * get_mask().a;\n"
"}\n";
const char *in_ca_source =
GLAMOR_DEFAULT_PRECISION
"void main()\n"
"{\n"
" gl_FragColor = get_source() * get_mask();\n"
"}\n";
const char *in_ca_alpha =
GLAMOR_DEFAULT_PRECISION
"void main()\n"
"{\n"
" gl_FragColor = get_source().a * get_mask();\n"
"}\n";
char *source;
const char *source_fetch;
const char *mask_fetch = "";
const char *in;
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:
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");
}
switch (key->in) {
case SHADER_IN_SOURCE_ONLY:
in = in_source_only;
break;
case SHADER_IN_NORMAL:
in = in_normal;
break;
case SHADER_IN_CA_SOURCE:
in = in_ca_source;
break;
case SHADER_IN_CA_ALPHA:
in = in_ca_alpha;
break;
default:
FatalError("Bad composite IN type");
}
XNFasprintf(&source, "%s%s%s%s%s%s", repeat_define, relocate_texture,
rel_sampler, source_fetch, mask_fetch, in);
prog = glamor_compile_glsl_prog(GL_FRAGMENT_SHADER, source);
free(source);
return prog;
}
static GLuint
glamor_create_composite_vs(struct shader_key *key)
{
const char *main_opening =
"attribute vec4 v_position;\n"
"attribute vec4 v_texcoord0;\n"
"attribute vec4 v_texcoord1;\n"
"varying vec2 source_texture;\n"
"varying 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 = "";
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;
XNFasprintf(&source,
"%s%s%s%s",
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);
glamor_make_current(glamor_priv);
vs = glamor_create_composite_vs(key);
if (vs == 0)
return;
fs = glamor_create_composite_fs(key);
if (fs == 0)
return;
prog = glCreateProgram();
glAttachShader(prog, vs);
glAttachShader(prog, fs);
glBindAttribLocation(prog, GLAMOR_VERTEX_POS, "v_position");
glBindAttribLocation(prog, GLAMOR_VERTEX_SOURCE, "v_texcoord0");
glBindAttribLocation(prog, GLAMOR_VERTEX_MASK, "v_texcoord1");
glamor_link_glsl_prog(screen, prog, "composite");
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];
if (shader->prog == 0)
glamor_create_composite_shader(screen, key, shader);
return shader;
}
static void
glamor_init_eb(unsigned short *eb, int vert_cnt)
{
int i, j;
for (i = 0, j = 0; j < vert_cnt; i += 6, j += 4) {
eb[i] = j;
eb[i + 1] = j + 1;
eb[i + 2] = j + 2;
eb[i + 3] = j;
eb[i + 4] = j + 2;
eb[i + 5] = j + 3;
}
}
void
glamor_init_composite_shaders(ScreenPtr screen)
{
glamor_screen_private *glamor_priv;
unsigned short *eb;
int eb_size;
glamor_priv = glamor_get_screen_private(screen);
glamor_make_current(glamor_priv);
glGenBuffers(1, &glamor_priv->ebo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, glamor_priv->ebo);
eb_size = GLAMOR_COMPOSITE_VBO_VERT_CNT * sizeof(short) * 2;
eb = XNFalloc(eb_size);
glamor_init_eb(eb, GLAMOR_COMPOSITE_VBO_VERT_CNT);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, eb_size, eb, GL_STATIC_DRAW);
free(eb);
}
void
glamor_fini_composite_shaders(ScreenPtr screen)
{
glamor_screen_private *glamor_priv;
glamor_composite_shader *shader;
int i, j, k;
glamor_priv = glamor_get_screen_private(screen);
glamor_make_current(glamor_priv);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glDeleteBuffers(1, &glamor_priv->ebo);
for (i = 0; i < SHADER_SOURCE_COUNT; i++)
for (j = 0; j < SHADER_MASK_COUNT; j++)
for (k = 0; k < SHADER_IN_COUNT; k++) {
shader = &glamor_priv->composite_shader[i][j][k];
if (shader->prog)
glDeleteProgram(shader->prog);
}
}
static Bool
glamor_set_composite_op(ScreenPtr screen,
CARD8 op, struct blendinfo *op_info_result,
PicturePtr dest, PicturePtr mask)
{
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 (mask && mask->componentAlpha
&& PICT_FORMAT_RGB(mask->format) != 0 && op_info->source_alpha) {
if (dest_blend == GL_SRC_ALPHA)
dest_blend = GL_SRC_COLOR;
else if (dest_blend == GL_ONE_MINUS_SRC_ALPHA)
dest_blend = GL_ONE_MINUS_SRC_COLOR;
}
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,
glamor_pixmap_private *pixmap_priv,
GLuint wh_location, GLuint repeat_location)
{
float wh[4];
int repeat_type;
glamor_make_current(glamor_priv);
glActiveTexture(GL_TEXTURE0 + unit);
glBindTexture(GL_TEXTURE_2D, pixmap_priv->base.fbo->tex);
repeat_type = picture->repeatType;
switch (picture->repeatType) {
case RepeatNone:
if (glamor_priv->gl_flavor != GLAMOR_GL_ES2) {
/* XXX GLES2 doesn't support GL_CLAMP_TO_BORDER. */
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,
GL_CLAMP_TO_BORDER);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,
GL_CLAMP_TO_BORDER);
} else {
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 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;
}
/*
* GLES2 doesn't support RepeatNone. We need to fix it anyway.
*
**/
if (repeat_type != RepeatNone)
repeat_type += RepeatFix;
else if (glamor_priv->gl_flavor == GLAMOR_GL_ES2
|| pixmap_priv->type == GLAMOR_TEXTURE_LARGE) {
if (picture->transform
|| (GLAMOR_PIXMAP_FBO_NOT_EXACT_SIZE(pixmap_priv)))
repeat_type += RepeatFix;
}
if (repeat_type >= RepeatFix) {
glamor_pixmap_fbo_fix_wh_ratio(wh, pixmap_priv);
if ((wh[0] != 1.0 || wh[1] != 1.0)
|| (glamor_priv->gl_flavor == GLAMOR_GL_ES2
&& repeat_type == RepeatFix))
glUniform4fv(wh_location, 1, wh);
else
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 int
compatible_formats(CARD8 op, PicturePtr dst, PicturePtr src)
{
if (op == PictOpSrc) {
if (src->format == dst->format)
return 1;
if (src->format == PICT_a8r8g8b8 && dst->format == PICT_x8r8g8b8)
return 1;
if (src->format == PICT_a8b8g8r8 && dst->format == PICT_x8b8g8r8)
return 1;
}
else if (op == PictOpOver) {
if (src->alphaMap || dst->alphaMap)
return 0;
if (src->format != dst->format)
return 0;
if (src->format == PICT_x8r8g8b8 || src->format == PICT_x8b8g8r8)
return 1;
}
return 0;
}
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 Bool
glamor_composite_with_copy(CARD8 op,
PicturePtr source,
PicturePtr dest,
INT16 x_source,
INT16 y_source,
INT16 x_dest, INT16 y_dest, RegionPtr region)
{
int ret = FALSE;
if (!source->pDrawable)
return FALSE;
if (!compatible_formats(op, dest, source))
return FALSE;
if (source->repeat || source->transform) {
return FALSE;
}
x_dest += dest->pDrawable->x;
y_dest += dest->pDrawable->y;
x_source += source->pDrawable->x;
y_source += source->pDrawable->y;
if (PICT_FORMAT_A(source->format) == 0) {
/* Fallback if we sample outside the source so that we
* swizzle the correct clear color for out-of-bounds texels.
*/
if (region->extents.x1 + x_source - x_dest < 0)
goto cleanup_region;
if (region->extents.x2 + x_source - x_dest > source->pDrawable->width)
goto cleanup_region;
if (region->extents.y1 + y_source - y_dest < 0)
goto cleanup_region;
if (region->extents.y2 + y_source - y_dest > source->pDrawable->height)
goto cleanup_region;
}
glamor_copy(source->pDrawable,
dest->pDrawable, NULL,
RegionRects(region), RegionNumRects(region),
x_source - x_dest, y_source - y_dest,
FALSE, FALSE, 0, NULL);
ret = TRUE;
cleanup_region:
return ret;
}
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_verts = 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_verts)
return;
if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP) {
glDrawRangeElements(GL_TRIANGLES, 0, glamor_priv->render_nr_verts,
(glamor_priv->render_nr_verts * 3) / 2,
GL_UNSIGNED_SHORT, NULL);
} else {
glDrawElements(GL_TRIANGLES, (glamor_priv->render_nr_verts * 3) / 2,
GL_UNSIGNED_SHORT, NULL);
}
}
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, enum shader_in 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 SHADER_IN_SOURCE_ONLY:
return TRUE;
case SHADER_IN_NORMAL:
src_type = PICT_FORMAT_TYPE(src);
mask_type = PICT_TYPE_A;
break;
case SHADER_IN_CA_SOURCE:
src_type = PICT_FORMAT_TYPE(src);
mask_type = PICT_FORMAT_TYPE(mask);
break;
case SHADER_IN_CA_ALPHA:
src_type = PICT_TYPE_A;
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 <
sizeof(pict_format_combine_tab) /
sizeof(pict_format_combine_tab[0]); 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(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(priv, repeat_type,
xscale, yscale,
x1, y1,
x2, y2,
texcoords, stride);
else if (matrix && repeat_type != RepeatNone)
glamor_set_repeat_transformed_normalize_tcoords_ext(priv, repeat_type,
matrix, xscale,
yscale, x1, y1, x2,
y2,
texcoords, stride);
}
Bool
glamor_composite_choose_shader(CARD8 op,
PicturePtr source,
PicturePtr mask,
PicturePtr dest,
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)
{
ScreenPtr screen = dest->pDrawable->pScreen;
PixmapPtr dest_pixmap = dest_pixmap_priv->base.pixmap;
PixmapPtr source_pixmap = NULL;
PixmapPtr mask_pixmap = NULL;
enum glamor_pixmap_status source_status = GLAMOR_NONE;
enum glamor_pixmap_status mask_status = GLAMOR_NONE;
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;
}
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) {
if (source->pSourcePict->type == SourcePictTypeSolidFill) {
key.source = SHADER_SOURCE_SOLID;
glamor_get_rgba_from_pixel(source->pSourcePict->solidFill.color,
&source_solid_color[0],
&source_solid_color[1],
&source_solid_color[2],
&source_solid_color[3], PICT_a8r8g8b8);
}
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) {
if (mask->pSourcePict->type == SourcePictTypeSolidFill) {
key.mask = SHADER_MASK_SOLID;
glamor_get_rgba_from_pixel
(mask->pSourcePict->solidFill.color,
&mask_solid_color[0],
&mask_solid_color[1],
&mask_solid_color[2], &mask_solid_color[3], PICT_a8r8g8b8);
}
else
goto fail;
}
else {
key.mask = SHADER_MASK_TEXTURE_ALPHA;
}
if (!mask->componentAlpha) {
key.in = SHADER_IN_NORMAL;
}
else {
if (op == PictOpClear)
key.mask = SHADER_MASK_NONE;
else if (op == PictOpSrc || op == PictOpAdd
|| op == PictOpIn || op == PictOpOut
|| op == PictOpOverReverse)
key.in = SHADER_IN_CA_SOURCE;
else if (op == PictOpOutReverse || op == PictOpInReverse) {
key.in = SHADER_IN_CA_ALPHA;
}
else {
glamor_fallback("Unsupported component alpha op: %d\n", op);
goto fail;
}
}
}
else {
key.mask = SHADER_MASK_NONE;
key.in = SHADER_IN_SOURCE_ONLY;
}
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) {
source_pixmap = source_pixmap_priv->base.pixmap;
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->base.gl_fbo == GLAMOR_FBO_UNATTACHED) {
#ifdef GLAMOR_PIXMAP_DYNAMIC_UPLOAD
source_status = GLAMOR_UPLOAD_PENDING;
#else
glamor_fallback("no texture in source\n");
goto fail;
#endif
}
}
if (key.mask == SHADER_MASK_TEXTURE ||
key.mask == SHADER_MASK_TEXTURE_ALPHA) {
mask_pixmap = mask_pixmap_priv->base.pixmap;
if (mask_pixmap == dest_pixmap) {
glamor_fallback("mask == dest\n");
goto fail;
}
if (mask_pixmap_priv->base.gl_fbo == GLAMOR_FBO_UNATTACHED) {
#ifdef GLAMOR_PIXMAP_DYNAMIC_UPLOAD
mask_status = GLAMOR_UPLOAD_PENDING;
#else
glamor_fallback("no texture in mask\n");
goto fail;
#endif
}
}
#ifdef GLAMOR_PIXMAP_DYNAMIC_UPLOAD
if (source_status == GLAMOR_UPLOAD_PENDING
&& mask_status == GLAMOR_UPLOAD_PENDING
&& 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;
}
if (source->format != saved_source_format) {
glamor_picture_format_fixup(source, source_pixmap_priv);
}
/* 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;
mask_status = GLAMOR_NONE;
}
source_status = glamor_upload_picture_to_texture(source);
if (source_status != GLAMOR_UPLOAD_DONE) {
glamor_fallback("Failed to upload source texture.\n");
goto fail;
}
}
else {
if (source_status == GLAMOR_UPLOAD_PENDING) {
source_status = glamor_upload_picture_to_texture(source);
if (source_status != GLAMOR_UPLOAD_DONE) {
glamor_fallback("Failed to upload source texture.\n");
goto fail;
}
}
if (mask_status == GLAMOR_UPLOAD_PENDING) {
mask_status = glamor_upload_picture_to_texture(mask);
if (mask_status != GLAMOR_UPLOAD_DONE) {
glamor_fallback("Failed to upload mask texture.\n");
goto fail;
}
}
}
#endif
/* 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;
}
/*Before enter the rendering stage, we need to fixup
* transformed source and mask, if the transform is not int translate. */
if (key.source != SHADER_SOURCE_SOLID
&& source->transform
&& !pixman_transform_is_int_translate(source->transform)
&& source_pixmap_priv->type != GLAMOR_TEXTURE_LARGE) {
if (!glamor_fixup_pixmap_priv(screen, source_pixmap_priv))
goto fail;
}
if (key.mask != SHADER_MASK_NONE && key.mask != SHADER_MASK_SOLID
&& mask->transform
&& !pixman_transform_is_int_translate(mask->transform)
&& mask_pixmap_priv->type != GLAMOR_TEXTURE_LARGE) {
if (!glamor_fixup_pixmap_priv(screen, mask_pixmap_priv))
goto fail;
}
if (!glamor_set_composite_op(screen, op, op_info, dest, mask))
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_priv = source_pixmap_priv;
(*shader)->source = source;
}
if (key.mask == SHADER_MASK_SOLID)
memcpy(&(*shader)->mask_solid_color[0],
mask_solid_color, 4 * sizeof(float));
else {
(*shader)->mask_priv = mask_pixmap_priv;
(*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;
}
void
glamor_composite_set_shader_blend(glamor_pixmap_private *dest_priv,
struct shader_key *key,
glamor_composite_shader *shader,
struct blendinfo *op_info)
{
glamor_screen_private *glamor_priv;
glamor_priv = dest_priv->base.glamor_priv;
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_priv, shader->source_wh,
shader->source_repeat_mode);
}
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_priv, shader->mask_wh,
shader->mask_repeat_mode);
}
}
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,
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,
Bool two_pass_ca)
{
ScreenPtr screen = dest->pDrawable->pScreen;
glamor_screen_private *glamor_priv = dest_pixmap_priv->base.glamor_priv;
PixmapPtr dest_pixmap = dest_pixmap_priv->base.pixmap;
PixmapPtr source_pixmap = NULL;
PixmapPtr mask_pixmap = NULL;
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;
if (!glamor_composite_choose_shader(op, source, mask, dest,
source_pixmap_priv, mask_pixmap_priv,
dest_pixmap_priv,
&key, &shader, &op_info,
&saved_source_format)) {
glamor_fallback("glamor_composite_choose_shader failed\n");
return ret;
}
if (two_pass_ca) {
if (!glamor_composite_choose_shader(PictOpAdd, source, mask, dest,
source_pixmap_priv,
mask_pixmap_priv, dest_pixmap_priv,
&key_ca, &shader_ca, &op_info_ca,
&saved_source_format)) {
glamor_fallback("glamor_composite_choose_shader failed\n");
return ret;
}
}
glamor_set_destination_pixmap_priv_nc(dest_pixmap_priv);
glamor_composite_set_shader_blend(dest_pixmap_priv, &key, shader, &op_info);
glamor_make_current(glamor_priv);
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_priv, &dst_xscale, &dst_yscale);
if (glamor_priv->has_source_coords) {
source_pixmap = source_pixmap_priv->base.pixmap;
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) {
mask_pixmap = mask_pixmap_priv->base.pixmap;
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);
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_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_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_verts += 4;
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 (two_pass_ca) {
glamor_composite_set_shader_blend(dest_pixmap_priv,
&key_ca, shader_ca, &op_info_ca);
glamor_flush_composite_rects(screen);
if (nrect)
glamor_composite_set_shader_blend(dest_pixmap_priv,
&key, shader, &op_info);
}
}
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;
return ret;
}
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;
PictFormatShort format;
if (!source->pDrawable)
format = PICT_a8r8g8b8;
else
format = source->format;
#ifdef GLAMOR_GRADIENT_SHADER
if (!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) {
#if 0 /* Debug to compare it to pixman, Enable it if needed. */
glamor_compare_pictures(screen, source,
dst, x_source, y_source, width, height,
0, 3);
#endif
return dst;
}
}
#endif
pixmap = glamor_create_pixmap(screen,
width,
height,
PIXMAN_FORMAT_DEPTH(format),
GLAMOR_CREATE_PIXMAP_CPU);
if (!pixmap)
return NULL;
dst = CreatePicture(0,
&pixmap->drawable,
PictureMatchFormat(screen,
PIXMAN_FORMAT_DEPTH(format),
format), 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,
glamor_pixmap_private *source_pixmap_priv,
glamor_pixmap_private *mask_pixmap_priv,
glamor_pixmap_private *dest_pixmap_priv,
RegionPtr region,
int x_source,
int y_source,
int x_mask, int y_mask, int x_dest, int y_dest)
{
ScreenPtr screen = dest->pDrawable->pScreen;
PixmapPtr source_pixmap = NULL, mask_pixmap = NULL;
PicturePtr temp_src = source, temp_mask = mask;
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;
Bool two_pass_ca = FALSE;
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);
if (source_pixmap_priv)
source_pixmap = source_pixmap_priv->base.pixmap;
if (mask_pixmap_priv)
mask_pixmap = mask_pixmap_priv->base.pixmap;
/* 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_priv =
glamor_get_pixmap_private((PixmapPtr) (temp_src->pDrawable));
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 convertion. */
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_priv =
glamor_get_pixmap_private((PixmapPtr) (temp_mask->pDrawable));
x_temp_mask = -extent->x1 + x_dest + dest->pDrawable->x;
y_temp_mask = -extent->y1 + y_dest + dest->pDrawable->y;
}
/* Do two-pass PictOpOver componentAlpha, until we enable
* dual source color blending.
*/
if (mask && mask->componentAlpha) {
if (op == PictOpOver) {
two_pass_ca = TRUE;
op = PictOpOutReverse;
}
}
if (!mask && temp_src) {
if (glamor_composite_with_copy(op, temp_src, dest,
x_temp_src, y_temp_src,
x_dest, y_dest, region)) {
ok = TRUE;
goto out;
}
}
/*XXXXX, self copy? */
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_priv, temp_mask_priv,
dest_pixmap_priv,
box_cnt, prect, two_pass_ca);
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;
}
static Bool
_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, Bool fallback)
{
ScreenPtr screen = dest->pDrawable->pScreen;
glamor_pixmap_private *dest_pixmap_priv;
glamor_pixmap_private *source_pixmap_priv = NULL, *mask_pixmap_priv = NULL;
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);
Bool ret = TRUE;
RegionRec region;
BoxPtr extent;
int nbox, ok = FALSE;
int force_clip = 0;
dest_pixmap_priv = glamor_get_pixmap_private(dest_pixmap);
if (source->pDrawable) {
source_pixmap = glamor_get_drawable_pixmap(source->pDrawable);
source_pixmap_priv = glamor_get_pixmap_private(source_pixmap);
if (source_pixmap_priv && source_pixmap_priv->type == GLAMOR_DRM_ONLY)
goto fail;
}
if (mask && mask->pDrawable) {
mask_pixmap = glamor_get_drawable_pixmap(mask->pDrawable);
mask_pixmap_priv = glamor_get_pixmap_private(mask_pixmap);
if (mask_pixmap_priv && mask_pixmap_priv->type == GLAMOR_DRM_ONLY)
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_PRIV_HAS_FBO(dest_pixmap_priv)) {
goto fail;
}
if (op >= ARRAY_SIZE(composite_op_info))
goto fail;
if (mask && mask->componentAlpha) {
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)) {
ret = TRUE;
goto done;
}
nbox = REGION_NUM_RECTS(&region);
DEBUGF("first clipped when compositing.\n");
DEBUGRegionPrint(&region);
extent = RegionExtents(&region);
if (nbox == 0) {
ret = TRUE;
goto done;
}
/* 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)
&& (dest_pixmap_priv->type != GLAMOR_TEXTURE_LARGE)
&& ((source_pixmap_priv
&& (source_pixmap_priv->type == GLAMOR_MEMORY ||
source->repeatType == RepeatPad))
|| (mask_pixmap_priv &&
(mask_pixmap_priv->type == GLAMOR_MEMORY ||
mask->repeatType == RepeatPad))
|| (!source_pixmap_priv &&
(source->pSourcePict->type != SourcePictTypeSolidFill))
|| (!mask_pixmap_priv && mask &&
mask->pSourcePict->type != SourcePictTypeSolidFill)))
force_clip = 1;
if (force_clip || dest_pixmap_priv->type == GLAMOR_TEXTURE_LARGE
|| (source_pixmap_priv
&& source_pixmap_priv->type == GLAMOR_TEXTURE_LARGE)
|| (mask_pixmap_priv && mask_pixmap_priv->type == GLAMOR_TEXTURE_LARGE))
ok = glamor_composite_largepixmap_region(op,
source, mask, dest,
source_pixmap_priv,
mask_pixmap_priv,
dest_pixmap_priv,
&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_priv,
mask_pixmap_priv,
dest_pixmap_priv,
&region,
x_source, y_source,
x_mask, y_mask, x_dest, y_dest);
REGION_UNINIT(dest->pDrawable->pScreen, &region);
if (ok)
goto done;
fail:
if (!fallback && glamor_ddx_fallback_check_pixmap(&dest_pixmap->drawable)
&& (!source_pixmap
|| glamor_ddx_fallback_check_pixmap(&source_pixmap->drawable))
&& (!mask_pixmap
|| glamor_ddx_fallback_check_pixmap(&mask_pixmap->drawable))) {
ret = FALSE;
goto done;
}
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);
done:
return ret;
}
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)
{
_glamor_composite(op, source, mask, dest, x_source, y_source,
x_mask, y_mask, x_dest, y_dest, width, height, TRUE);
}
Bool
glamor_composite_nf(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)
{
return _glamor_composite(op, source, mask, dest, x_source, y_source,
x_mask, y_mask, x_dest, y_dest, width, height,
FALSE);
}
static void
glamor_get_src_rect_extent(int nrect,
glamor_composite_rect_t *rects, BoxPtr extent)
{
extent->x1 = MAXSHORT;
extent->y1 = MAXSHORT;
extent->x2 = MINSHORT;
extent->y2 = MINSHORT;
while (nrect--) {
if (extent->x1 > rects->x_src)
extent->x1 = rects->x_src;
if (extent->y1 > rects->y_src)
extent->y1 = rects->y_src;
if (extent->x2 < rects->x_src + rects->width)
extent->x2 = rects->x_src + rects->width;
if (extent->y2 < rects->y_src + rects->height)
extent->y2 = rects->y_src + rects->height;
rects++;
}
}
static void
glamor_composite_src_rect_translate(int nrect,
glamor_composite_rect_t *rects,
int x, int y)
{
while (nrect--) {
rects->x_src += x;
rects->y_src += y;
rects++;
}
}
void
glamor_composite_glyph_rects(CARD8 op,
PicturePtr src, PicturePtr mask, PicturePtr dst,
int nrect, glamor_composite_rect_t *rects)
{
int n;
PicturePtr temp_src = NULL;
glamor_composite_rect_t *r;
ValidatePicture(src);
ValidatePicture(dst);
if (!(glamor_is_large_picture(src)
|| (mask && glamor_is_large_picture(mask))
|| glamor_is_large_picture(dst))) {
glamor_pixmap_private *src_pixmap_priv = NULL;
glamor_pixmap_private *mask_pixmap_priv = NULL;
glamor_pixmap_private *dst_pixmap_priv;
glamor_pixmap_private *temp_src_priv = NULL;
BoxRec src_extent;
dst_pixmap_priv = glamor_get_pixmap_private
(glamor_get_drawable_pixmap(dst->pDrawable));
if (mask && mask->pDrawable)
mask_pixmap_priv = glamor_get_pixmap_private
(glamor_get_drawable_pixmap(mask->pDrawable));
if (src->pDrawable)
src_pixmap_priv = glamor_get_pixmap_private
(glamor_get_drawable_pixmap(src->pDrawable));
if (!src->pDrawable
&& (src->pSourcePict->type != SourcePictTypeSolidFill)) {
glamor_get_src_rect_extent(nrect, rects, &src_extent);
temp_src = glamor_convert_gradient_picture(dst->pDrawable->pScreen,
src,
src_extent.x1,
src_extent.y1,
src_extent.x2 -
src_extent.x1,
src_extent.y2 -
src_extent.y1);
if (!temp_src)
goto fallback;
temp_src_priv = glamor_get_pixmap_private
((PixmapPtr) (temp_src->pDrawable));
glamor_composite_src_rect_translate(nrect, rects,
-src_extent.x1, -src_extent.y1);
}
else {
temp_src = src;
temp_src_priv = src_pixmap_priv;
}
if (mask && mask->componentAlpha) {
if (op == PictOpOver) {
if (glamor_composite_with_shader(PictOpOutReverse,
temp_src, mask, dst,
temp_src_priv,
mask_pixmap_priv,
dst_pixmap_priv, nrect, rects,
TRUE))
goto done;
}
}
else {
if (glamor_composite_with_shader
(op, temp_src, mask, dst, temp_src_priv, mask_pixmap_priv,
dst_pixmap_priv, nrect, rects, FALSE))
goto done;
}
}
fallback:
n = nrect;
r = rects;
while (n--) {
CompositePicture(op,
temp_src ? temp_src : src,
mask,
dst,
r->x_src, r->y_src,
r->x_mask, r->y_mask,
r->x_dst, r->y_dst, r->width, r->height);
r++;
}
done:
if (temp_src && temp_src != src)
FreePicture(temp_src, 0);
}
static Bool
_glamor_composite_rects(CARD8 op,
PicturePtr pDst,
xRenderColor *color,
int nRect, xRectangle *rects, Bool fallback)
{
miCompositeRects(op, pDst, color, nRect, rects);
return TRUE;
}
void
glamor_composite_rects(CARD8 op,
PicturePtr pDst,
xRenderColor *color, int nRect, xRectangle *rects)
{
_glamor_composite_rects(op, pDst, color, nRect, rects, TRUE);
}
Bool
glamor_composite_rects_nf(CARD8 op,
PicturePtr pDst,
xRenderColor *color, int nRect, xRectangle *rects)
{
return _glamor_composite_rects(op, pDst, color, nRect, rects, FALSE);
}
#endif /* RENDER */
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