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xserver-multidpi/glamor/glamor_pixmap.c
Keith Packard d181e52ceb glamor: Free converted bits in _glamor_upload_bits_to_pixmap_texture fast path 
When uploading bits to a texture which need reformatting to match a
supported GL format, a temporary buffer is allocated to hold the
reformatted bits. This gets freed in the general path, but is not
freed in the fast path because that includes an early return before
the call to free.

This patch removes the early return and places the general case under
an 'else' block, so that both paths reach the call to free.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2014-10-26 17:00:17 -07:00

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/*
* Copyright © 2001 Keith Packard
* Copyright © 2008 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>
*
*/
#include <stdlib.h>
#include "glamor_priv.h"
/**
* Sets the offsets to add to coordinates to make them address the same bits in
* the backing drawable. These coordinates are nonzero only for redirected
* windows.
*/
void
glamor_get_drawable_deltas(DrawablePtr drawable, PixmapPtr pixmap,
int *x, int *y)
{
#ifdef COMPOSITE
if (drawable->type == DRAWABLE_WINDOW) {
*x = -pixmap->screen_x;
*y = -pixmap->screen_y;
return;
}
#endif
*x = 0;
*y = 0;
}
void
glamor_pixmap_init(ScreenPtr screen)
{
}
void
glamor_pixmap_fini(ScreenPtr screen)
{
}
void
glamor_set_destination_pixmap_fbo(glamor_pixmap_fbo *fbo, int x0, int y0,
int width, int height)
{
glamor_make_current(fbo->glamor_priv);
glBindFramebuffer(GL_FRAMEBUFFER, fbo->fb);
glViewport(x0, y0, width, height);
}
void
glamor_set_destination_pixmap_priv_nc(glamor_pixmap_private *pixmap_priv)
{
int w, h;
PIXMAP_PRIV_GET_ACTUAL_SIZE(pixmap_priv, w, h);
glamor_set_destination_pixmap_fbo(pixmap_priv->base.fbo, 0, 0, w, h);
}
int
glamor_set_destination_pixmap_priv(glamor_pixmap_private *pixmap_priv)
{
if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
return -1;
glamor_set_destination_pixmap_priv_nc(pixmap_priv);
return 0;
}
int
glamor_set_destination_pixmap(PixmapPtr pixmap)
{
int err;
glamor_pixmap_private *pixmap_priv = glamor_get_pixmap_private(pixmap);
err = glamor_set_destination_pixmap_priv(pixmap_priv);
return err;
}
Bool
glamor_set_planemask(PixmapPtr pixmap, unsigned long planemask)
{
if (glamor_pm_is_solid(&pixmap->drawable, planemask)) {
return GL_TRUE;
}
glamor_fallback("unsupported planemask %lx\n", planemask);
return GL_FALSE;
}
Bool
glamor_set_alu(ScreenPtr screen, unsigned char alu)
{
glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
if (glamor_priv->gl_flavor == GLAMOR_GL_ES2) {
if (alu != GXcopy)
return FALSE;
else
return TRUE;
}
if (alu == GXcopy) {
glDisable(GL_COLOR_LOGIC_OP);
return TRUE;
}
glEnable(GL_COLOR_LOGIC_OP);
switch (alu) {
case GXclear:
glLogicOp(GL_CLEAR);
break;
case GXand:
glLogicOp(GL_AND);
break;
case GXandReverse:
glLogicOp(GL_AND_REVERSE);
break;
case GXandInverted:
glLogicOp(GL_AND_INVERTED);
break;
case GXnoop:
glLogicOp(GL_NOOP);
break;
case GXxor:
glLogicOp(GL_XOR);
break;
case GXor:
glLogicOp(GL_OR);
break;
case GXnor:
glLogicOp(GL_NOR);
break;
case GXequiv:
glLogicOp(GL_EQUIV);
break;
case GXinvert:
glLogicOp(GL_INVERT);
break;
case GXorReverse:
glLogicOp(GL_OR_REVERSE);
break;
case GXcopyInverted:
glLogicOp(GL_COPY_INVERTED);
break;
case GXorInverted:
glLogicOp(GL_OR_INVERTED);
break;
case GXnand:
glLogicOp(GL_NAND);
break;
case GXset:
glLogicOp(GL_SET);
break;
default:
glamor_fallback("unsupported alu %x\n", alu);
return FALSE;
}
return TRUE;
}
/*
* Map picture's format to the correct gl texture format and type.
* no_alpha is used to indicate whehter we need to wire alpha to 1.
*
* Although opengl support A1/GL_BITMAP, we still don't use it
* here, it seems that mesa has bugs when uploading a A1 bitmap.
*
* Return 0 if find a matched texture type. Otherwise return -1.
**/
static int
glamor_get_tex_format_type_from_pictformat_gl(PictFormatShort format,
GLenum *tex_format,
GLenum *tex_type,
int *no_alpha,
int *revert,
int *swap_rb, int is_upload)
{
*no_alpha = 0;
*revert = REVERT_NONE;
*swap_rb = is_upload ? SWAP_NONE_UPLOADING : SWAP_NONE_DOWNLOADING;
switch (format) {
case PICT_a1:
*tex_format = GL_ALPHA;
*tex_type = GL_UNSIGNED_BYTE;
*revert = is_upload ? REVERT_UPLOADING_A1 : REVERT_DOWNLOADING_A1;
break;
case PICT_b8g8r8x8:
*no_alpha = 1;
case PICT_b8g8r8a8:
*tex_format = GL_BGRA;
*tex_type = GL_UNSIGNED_INT_8_8_8_8;
break;
case PICT_x8r8g8b8:
*no_alpha = 1;
case PICT_a8r8g8b8:
*tex_format = GL_BGRA;
*tex_type = GL_UNSIGNED_INT_8_8_8_8_REV;
break;
case PICT_x8b8g8r8:
*no_alpha = 1;
case PICT_a8b8g8r8:
*tex_format = GL_RGBA;
*tex_type = GL_UNSIGNED_INT_8_8_8_8_REV;
break;
case PICT_x2r10g10b10:
*no_alpha = 1;
case PICT_a2r10g10b10:
*tex_format = GL_BGRA;
*tex_type = GL_UNSIGNED_INT_2_10_10_10_REV;
break;
case PICT_x2b10g10r10:
*no_alpha = 1;
case PICT_a2b10g10r10:
*tex_format = GL_RGBA;
*tex_type = GL_UNSIGNED_INT_2_10_10_10_REV;
break;
case PICT_r5g6b5:
*tex_format = GL_RGB;
*tex_type = GL_UNSIGNED_SHORT_5_6_5;
break;
case PICT_b5g6r5:
*tex_format = GL_RGB;
*tex_type = GL_UNSIGNED_SHORT_5_6_5_REV;
break;
case PICT_x1b5g5r5:
*no_alpha = 1;
case PICT_a1b5g5r5:
*tex_format = GL_RGBA;
*tex_type = GL_UNSIGNED_SHORT_1_5_5_5_REV;
break;
case PICT_x1r5g5b5:
*no_alpha = 1;
case PICT_a1r5g5b5:
*tex_format = GL_BGRA;
*tex_type = GL_UNSIGNED_SHORT_1_5_5_5_REV;
break;
case PICT_a8:
*tex_format = GL_ALPHA;
*tex_type = GL_UNSIGNED_BYTE;
break;
case PICT_x4r4g4b4:
*no_alpha = 1;
case PICT_a4r4g4b4:
*tex_format = GL_BGRA;
*tex_type = GL_UNSIGNED_SHORT_4_4_4_4_REV;
break;
case PICT_x4b4g4r4:
*no_alpha = 1;
case PICT_a4b4g4r4:
*tex_format = GL_RGBA;
*tex_type = GL_UNSIGNED_SHORT_4_4_4_4_REV;
break;
default:
return -1;
}
return 0;
}
#define IS_LITTLE_ENDIAN (IMAGE_BYTE_ORDER == LSBFirst)
static int
glamor_get_tex_format_type_from_pictformat_gles2(PictFormatShort format,
GLenum *tex_format,
GLenum *tex_type,
int *no_alpha,
int *revert,
int *swap_rb, int is_upload)
{
int need_swap_rb = 0;
*no_alpha = 0;
*revert = IS_LITTLE_ENDIAN ? REVERT_NONE : REVERT_NORMAL;
switch (format) {
case PICT_b8g8r8x8:
*no_alpha = 1;
case PICT_b8g8r8a8:
*tex_format = GL_RGBA;
*tex_type = GL_UNSIGNED_BYTE;
need_swap_rb = 1;
*revert = IS_LITTLE_ENDIAN ? REVERT_NORMAL : REVERT_NONE;
break;
case PICT_x8r8g8b8:
*no_alpha = 1;
case PICT_a8r8g8b8:
*tex_format = GL_RGBA;
*tex_type = GL_UNSIGNED_BYTE;
need_swap_rb = 1;
break;
case PICT_x8b8g8r8:
*no_alpha = 1;
case PICT_a8b8g8r8:
*tex_format = GL_RGBA;
*tex_type = GL_UNSIGNED_BYTE;
break;
case PICT_x2r10g10b10:
*no_alpha = 1;
case PICT_a2r10g10b10:
*tex_format = GL_RGBA;
/* glReadPixmap doesn't support GL_UNSIGNED_INT_10_10_10_2.
* we have to use GL_UNSIGNED_BYTE and do the conversion in
* shader latter.*/
*tex_type = GL_UNSIGNED_BYTE;
if (is_upload == 1) {
if (!IS_LITTLE_ENDIAN)
*revert = REVERT_UPLOADING_10_10_10_2;
else
*revert = REVERT_UPLOADING_2_10_10_10;
}
else {
if (!IS_LITTLE_ENDIAN) {
*revert = REVERT_DOWNLOADING_10_10_10_2;
}
else {
*revert = REVERT_DOWNLOADING_2_10_10_10;
}
}
need_swap_rb = 1;
break;
case PICT_x2b10g10r10:
*no_alpha = 1;
case PICT_a2b10g10r10:
*tex_format = GL_RGBA;
*tex_type = GL_UNSIGNED_BYTE;
if (is_upload == 1) {
if (!IS_LITTLE_ENDIAN)
*revert = REVERT_UPLOADING_10_10_10_2;
else
*revert = REVERT_UPLOADING_2_10_10_10;
}
else {
if (!IS_LITTLE_ENDIAN) {
*revert = REVERT_DOWNLOADING_10_10_10_2;
}
else {
*revert = REVERT_DOWNLOADING_2_10_10_10;
}
}
break;
case PICT_r5g6b5:
*tex_format = GL_RGB;
*tex_type = GL_UNSIGNED_SHORT_5_6_5;
*revert = IS_LITTLE_ENDIAN ? REVERT_NONE : REVERT_NORMAL;
break;
case PICT_b5g6r5:
*tex_format = GL_RGB;
*tex_type = GL_UNSIGNED_SHORT_5_6_5;
need_swap_rb = IS_LITTLE_ENDIAN ? 1 : 0;;
break;
case PICT_x1b5g5r5:
*no_alpha = 1;
case PICT_a1b5g5r5:
*tex_format = GL_RGBA;
*tex_type = GL_UNSIGNED_SHORT_5_5_5_1;
if (IS_LITTLE_ENDIAN) {
*revert =
is_upload ? REVERT_UPLOADING_1_5_5_5 :
REVERT_DOWNLOADING_1_5_5_5;
}
else
*revert = REVERT_NONE;
break;
case PICT_x1r5g5b5:
*no_alpha = 1;
case PICT_a1r5g5b5:
*tex_format = GL_RGBA;
*tex_type = GL_UNSIGNED_SHORT_5_5_5_1;
if (IS_LITTLE_ENDIAN) {
*revert =
is_upload ? REVERT_UPLOADING_1_5_5_5 :
REVERT_DOWNLOADING_1_5_5_5;
}
else
*revert = REVERT_NONE;
need_swap_rb = 1;
break;
case PICT_a1:
*tex_format = GL_ALPHA;
*tex_type = GL_UNSIGNED_BYTE;
*revert = is_upload ? REVERT_UPLOADING_A1 : REVERT_DOWNLOADING_A1;
break;
case PICT_a8:
*tex_format = GL_ALPHA;
*tex_type = GL_UNSIGNED_BYTE;
*revert = REVERT_NONE;
break;
case PICT_x4r4g4b4:
*no_alpha = 1;
case PICT_a4r4g4b4:
*tex_format = GL_RGBA;
*tex_type = GL_UNSIGNED_SHORT_4_4_4_4;
*revert = IS_LITTLE_ENDIAN ? REVERT_NORMAL : REVERT_NONE;
need_swap_rb = 1;
break;
case PICT_x4b4g4r4:
*no_alpha = 1;
case PICT_a4b4g4r4:
*tex_format = GL_RGBA;
*tex_type = GL_UNSIGNED_SHORT_4_4_4_4;
*revert = IS_LITTLE_ENDIAN ? REVERT_NORMAL : REVERT_NONE;
break;
default:
LogMessageVerb(X_INFO, 0,
"fail to get matched format for %x \n", format);
return -1;
}
if (need_swap_rb)
*swap_rb = is_upload ? SWAP_UPLOADING : SWAP_DOWNLOADING;
else
*swap_rb = is_upload ? SWAP_NONE_UPLOADING : SWAP_NONE_DOWNLOADING;
return 0;
}
static int
glamor_get_tex_format_type_from_pixmap(PixmapPtr pixmap,
GLenum *format,
GLenum *type,
int *no_alpha,
int *revert, int *swap_rb, int is_upload)
{
glamor_pixmap_private *pixmap_priv;
PictFormatShort pict_format;
glamor_screen_private *glamor_priv =
glamor_get_screen_private(pixmap->drawable.pScreen);
pixmap_priv = glamor_get_pixmap_private(pixmap);
if (GLAMOR_PIXMAP_PRIV_IS_PICTURE(pixmap_priv))
pict_format = pixmap_priv->base.picture->format;
else
pict_format = format_for_depth(pixmap->drawable.depth);
if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP) {
return glamor_get_tex_format_type_from_pictformat_gl(pict_format,
format, type,
no_alpha,
revert,
swap_rb,
is_upload);
} else {
return glamor_get_tex_format_type_from_pictformat_gles2(pict_format,
format, type,
no_alpha,
revert,
swap_rb,
is_upload);
}
}
static void *
_glamor_color_convert_a1_a8(void *src_bits, void *dst_bits, int w, int h,
int stride, int revert)
{
PictFormatShort dst_format, src_format;
pixman_image_t *dst_image;
pixman_image_t *src_image;
int src_stride;
if (revert == REVERT_UPLOADING_A1) {
src_format = PICT_a1;
dst_format = PICT_a8;
src_stride = PixmapBytePad(w, 1);
}
else {
dst_format = PICT_a1;
src_format = PICT_a8;
src_stride = (((w * 8 + 7) / 8) + 3) & ~3;
}
dst_image = pixman_image_create_bits(dst_format, w, h, dst_bits, stride);
if (dst_image == NULL) {
return NULL;
}
src_image = pixman_image_create_bits(src_format,
w, h, src_bits, src_stride);
if (src_image == NULL) {
pixman_image_unref(dst_image);
return NULL;
}
pixman_image_composite(PictOpSrc, src_image, NULL, dst_image,
0, 0, 0, 0, 0, 0, w, h);
pixman_image_unref(src_image);
pixman_image_unref(dst_image);
return dst_bits;
}
#define ADJUST_BITS(d, src_bits, dst_bits) (((dst_bits) == (src_bits)) ? (d) : \
(((dst_bits) > (src_bits)) ? \
(((d) << ((dst_bits) - (src_bits))) \
+ (( 1 << ((dst_bits) - (src_bits))) >> 1)) \
: ((d) >> ((src_bits) - (dst_bits)))))
#define GLAMOR_DO_CONVERT(src, dst, no_alpha, swap, \
a_shift_src, a_bits_src, \
b_shift_src, b_bits_src, \
g_shift_src, g_bits_src, \
r_shift_src, r_bits_src, \
a_shift, a_bits, \
b_shift, b_bits, \
g_shift, g_bits, \
r_shift, r_bits) \
do { \
typeof(src) a,b,g,r; \
typeof(src) a_mask_src, b_mask_src, g_mask_src, r_mask_src;\
a_mask_src = (((1 << (a_bits_src)) - 1) << a_shift_src);\
b_mask_src = (((1 << (b_bits_src)) - 1) << b_shift_src);\
g_mask_src = (((1 << (g_bits_src)) - 1) << g_shift_src);\
r_mask_src = (((1 << (r_bits_src)) - 1) << r_shift_src);\
if (no_alpha) \
a = (a_mask_src) >> (a_shift_src); \
else \
a = ((src) & (a_mask_src)) >> (a_shift_src); \
b = ((src) & (b_mask_src)) >> (b_shift_src); \
g = ((src) & (g_mask_src)) >> (g_shift_src); \
r = ((src) & (r_mask_src)) >> (r_shift_src); \
a = ADJUST_BITS(a, a_bits_src, a_bits); \
b = ADJUST_BITS(b, b_bits_src, b_bits); \
g = ADJUST_BITS(g, g_bits_src, g_bits); \
r = ADJUST_BITS(r, r_bits_src, r_bits); \
if (swap == 0) \
(*dst) = ((a) << (a_shift)) | ((b) << (b_shift)) | ((g) << (g_shift)) | ((r) << (r_shift)); \
else \
(*dst) = ((a) << (a_shift)) | ((r) << (b_shift)) | ((g) << (g_shift)) | ((b) << (r_shift)); \
} while (0)
static void *
_glamor_color_revert_x2b10g10r10(void *src_bits, void *dst_bits, int w, int h,
int stride, int no_alpha, int revert,
int swap_rb)
{
int x, y;
unsigned int *words, *saved_words, *source_words;
int swap = !(swap_rb == SWAP_NONE_DOWNLOADING ||
swap_rb == SWAP_NONE_UPLOADING);
source_words = src_bits;
words = dst_bits;
saved_words = words;
for (y = 0; y < h; y++) {
DEBUGF("Line %d : ", y);
for (x = 0; x < w; x++) {
unsigned int pixel = source_words[x];
if (revert == REVERT_DOWNLOADING_2_10_10_10)
GLAMOR_DO_CONVERT(pixel, &words[x], no_alpha, swap,
24, 8, 16, 8, 8, 8, 0, 8,
30, 2, 20, 10, 10, 10, 0, 10);
else
GLAMOR_DO_CONVERT(pixel, &words[x], no_alpha, swap,
30, 2, 20, 10, 10, 10, 0, 10,
24, 8, 16, 8, 8, 8, 0, 8);
DEBUGF("%x:%x ", pixel, words[x]);
}
DEBUGF("\n");
words += stride / sizeof(*words);
source_words += stride / sizeof(*words);
}
DEBUGF("\n");
return saved_words;
}
static void *
_glamor_color_revert_x1b5g5r5(void *src_bits, void *dst_bits, int w, int h,
int stride, int no_alpha, int revert, int swap_rb)
{
int x, y;
unsigned short *words, *saved_words, *source_words;
int swap = !(swap_rb == SWAP_NONE_DOWNLOADING ||
swap_rb == SWAP_NONE_UPLOADING);
words = dst_bits;
source_words = src_bits;
saved_words = words;
for (y = 0; y < h; y++) {
DEBUGF("Line %d : ", y);
for (x = 0; x < w; x++) {
unsigned short pixel = source_words[x];
if (revert == REVERT_DOWNLOADING_1_5_5_5)
GLAMOR_DO_CONVERT(pixel, &words[x], no_alpha, swap,
0, 1, 1, 5, 6, 5, 11, 5,
15, 1, 10, 5, 5, 5, 0, 5);
else
GLAMOR_DO_CONVERT(pixel, &words[x], no_alpha, swap,
15, 1, 10, 5, 5, 5, 0, 5,
0, 1, 1, 5, 6, 5, 11, 5);
DEBUGF("%04x:%04x ", pixel, words[x]);
}
DEBUGF("\n");
words += stride / sizeof(*words);
source_words += stride / sizeof(*words);
}
DEBUGF("\n");
return saved_words;
}
/*
* This function is to convert an unsupported color format to/from a
* supported GL format.
* Here are the current scenarios:
*
* @no_alpha:
* If it is set, then we need to wire the alpha value to 1.
* @revert:
REVERT_DOWNLOADING_A1 : convert an Alpha8 buffer to a A1 buffer.
REVERT_UPLOADING_A1 : convert an A1 buffer to an Alpha8 buffer
REVERT_DOWNLOADING_2_10_10_10 : convert r10G10b10X2 to X2B10G10R10
REVERT_UPLOADING_2_10_10_10 : convert X2B10G10R10 to R10G10B10X2
REVERT_DOWNLOADING_1_5_5_5 : convert B5G5R5X1 to X1R5G5B5
REVERT_UPLOADING_1_5_5_5 : convert X1R5G5B5 to B5G5R5X1
@swap_rb: if we have the swap_rb set, then we need to swap the R and B's position.
*
*/
static void *
glamor_color_convert_to_bits(void *src_bits, void *dst_bits, int w, int h,
int stride, int no_alpha, int revert, int swap_rb)
{
if (revert == REVERT_DOWNLOADING_A1 || revert == REVERT_UPLOADING_A1) {
return _glamor_color_convert_a1_a8(src_bits, dst_bits, w, h, stride,
revert);
}
else if (revert == REVERT_DOWNLOADING_2_10_10_10 ||
revert == REVERT_UPLOADING_2_10_10_10) {
return _glamor_color_revert_x2b10g10r10(src_bits, dst_bits, w, h,
stride, no_alpha, revert,
swap_rb);
}
else if (revert == REVERT_DOWNLOADING_1_5_5_5 ||
revert == REVERT_UPLOADING_1_5_5_5) {
return _glamor_color_revert_x1b5g5r5(src_bits, dst_bits, w, h, stride,
no_alpha, revert, swap_rb);
}
else
ErrorF("convert a non-supported mode %x.\n", revert);
return NULL;
}
/**
* Upload pixmap to a specified texture.
* This texture may not be the one attached to it.
**/
static void
__glamor_upload_pixmap_to_texture(PixmapPtr pixmap, unsigned int *tex,
GLenum format,
GLenum type,
int x, int y, int w, int h,
void *bits, int pbo)
{
glamor_screen_private *glamor_priv =
glamor_get_screen_private(pixmap->drawable.pScreen);
int non_sub = 0;
unsigned int iformat = 0;
glamor_make_current(glamor_priv);
if (*tex == 0) {
glGenTextures(1, tex);
if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP)
iformat = gl_iformat_for_pixmap(pixmap);
else
iformat = format;
non_sub = 1;
assert(x == 0 && y == 0);
}
glBindTexture(GL_TEXTURE_2D, *tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
assert(pbo || bits != 0);
if (bits == NULL) {
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbo);
glUnmapBuffer(GL_PIXEL_UNPACK_BUFFER);
}
if (non_sub)
glTexImage2D(GL_TEXTURE_2D, 0, iformat, w, h, 0, format, type, bits);
else
glTexSubImage2D(GL_TEXTURE_2D, 0, x, y, w, h, format, type, bits);
if (bits == NULL)
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
}
static Bool
_glamor_upload_bits_to_pixmap_texture(PixmapPtr pixmap, GLenum format,
GLenum type, int no_alpha, int revert,
int swap_rb, int x, int y, int w, int h,
int stride, void *bits, int pbo)
{
glamor_pixmap_private *pixmap_priv = glamor_get_pixmap_private(pixmap);
glamor_screen_private *glamor_priv =
glamor_get_screen_private(pixmap->drawable.pScreen);
static float vertices[8];
static float texcoords_inv[8] = { 0, 0,
1, 0,
1, 1,
0, 1
};
float *ptexcoords;
float dst_xscale, dst_yscale;
GLuint tex = 0;
int need_free_bits = 0;
if (bits == NULL)
goto ready_to_upload;
if (revert > REVERT_NORMAL) {
/* XXX if we are restoring the pixmap, then we may not need to allocate
* new buffer */
void *converted_bits;
if (pixmap->drawable.depth == 1)
stride = (((w * 8 + 7) / 8) + 3) & ~3;
converted_bits = malloc(h * stride);
if (converted_bits == NULL)
return FALSE;
bits = glamor_color_convert_to_bits(bits, converted_bits, w, h,
stride, no_alpha, revert, swap_rb);
if (bits == NULL) {
free(converted_bits);
ErrorF("Failed to convert pixmap no_alpha %d,"
"revert mode %d, swap mode %d\n", no_alpha, revert, swap_rb);
return FALSE;
}
no_alpha = 0;
revert = REVERT_NONE;
swap_rb = SWAP_NONE_UPLOADING;
need_free_bits = TRUE;
}
ready_to_upload:
/* Try fast path firstly, upload the pixmap to the texture attached
* to the fbo directly. */
if (no_alpha == 0
&& revert == REVERT_NONE && swap_rb == SWAP_NONE_UPLOADING
#ifdef WALKAROUND_LARGE_TEXTURE_MAP
&& pixmap_priv->type != GLAMOR_TEXTURE_LARGE
#endif
) {
int fbo_x_off, fbo_y_off;
assert(pixmap_priv->base.fbo->tex);
pixmap_priv_get_fbo_off(pixmap_priv, &fbo_x_off, &fbo_y_off);
assert(x + fbo_x_off >= 0 && y + fbo_y_off >= 0);
assert(x + fbo_x_off + w <= pixmap_priv->base.fbo->width);
assert(y + fbo_y_off + h <= pixmap_priv->base.fbo->height);
__glamor_upload_pixmap_to_texture(pixmap, &pixmap_priv->base.fbo->tex,
format, type,
x + fbo_x_off, y + fbo_y_off, w, h,
bits, pbo);
} else {
ptexcoords = texcoords_inv;
pixmap_priv_get_dest_scale(pixmap_priv, &dst_xscale, &dst_yscale);
glamor_set_normalize_vcoords(pixmap_priv, dst_xscale,
dst_yscale,
x, y,
x + w, y + h,
vertices);
/* Slow path, we need to flip y or wire alpha to 1. */
glamor_make_current(glamor_priv);
glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT,
GL_FALSE, 2 * sizeof(float), vertices);
glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2, GL_FLOAT,
GL_FALSE, 2 * sizeof(float), ptexcoords);
glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
glamor_set_destination_pixmap_priv_nc(pixmap_priv);
__glamor_upload_pixmap_to_texture(pixmap, &tex,
format, type, 0, 0, w, h, bits, pbo);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glUseProgram(glamor_priv->finish_access_prog[no_alpha]);
glUniform1i(glamor_priv->finish_access_revert[no_alpha], revert);
glUniform1i(glamor_priv->finish_access_swap_rb[no_alpha], swap_rb);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
glDeleteTextures(1, &tex);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
}
if (need_free_bits)
free(bits);
return TRUE;
}
/*
* Prepare to upload a pixmap to texture memory.
* no_alpha equals 1 means the format needs to wire alpha to 1.
*/
static int
glamor_pixmap_upload_prepare(PixmapPtr pixmap, GLenum format, int no_alpha,
int revert, int swap_rb)
{
int flag = 0;
glamor_pixmap_private *pixmap_priv;
glamor_screen_private *glamor_priv;
glamor_pixmap_fbo *fbo;
GLenum iformat;
pixmap_priv = glamor_get_pixmap_private(pixmap);
glamor_priv = glamor_get_screen_private(pixmap->drawable.pScreen);
if (pixmap_priv->base.gl_fbo != GLAMOR_FBO_UNATTACHED)
return 0;
if (pixmap_priv->base.fbo
&& (pixmap_priv->base.fbo->width < pixmap->drawable.width
|| pixmap_priv->base.fbo->height < pixmap->drawable.height)) {
fbo = glamor_pixmap_detach_fbo(pixmap_priv);
glamor_destroy_fbo(fbo);
}
if (pixmap_priv->base.fbo && pixmap_priv->base.fbo->fb)
return 0;
if (!(no_alpha || (revert == REVERT_NORMAL)
|| (swap_rb != SWAP_NONE_UPLOADING))) {
/* We don't need a fbo, a simple texture uploading should work. */
flag = GLAMOR_CREATE_FBO_NO_FBO;
}
if ((flag == GLAMOR_CREATE_FBO_NO_FBO
&& pixmap_priv->base.fbo && pixmap_priv->base.fbo->tex)
|| (flag == 0 && pixmap_priv->base.fbo && pixmap_priv->base.fbo->fb))
return 0;
if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP)
iformat = gl_iformat_for_pixmap(pixmap);
else
iformat = format;
if (!glamor_pixmap_ensure_fbo(pixmap, iformat, flag))
return -1;
return 0;
}
/*
* upload sub region to a large region.
* */
static void
glamor_put_bits(char *dst_bits, int dst_stride, char *src_bits,
int src_stride, int bpp, int x, int y, int w, int h)
{
int j;
int byte_per_pixel;
byte_per_pixel = bpp / 8;
src_bits += y * src_stride + (x * byte_per_pixel);
for (j = y; j < y + h; j++) {
memcpy(dst_bits, src_bits, w * byte_per_pixel);
src_bits += src_stride;
dst_bits += dst_stride;
}
}
Bool
glamor_upload_sub_pixmap_to_texture(PixmapPtr pixmap, int x, int y, int w,
int h, int stride, void *bits, int pbo)
{
GLenum format, type;
int no_alpha, revert, swap_rb;
glamor_pixmap_private *pixmap_priv;
Bool force_clip;
if (glamor_get_tex_format_type_from_pixmap(pixmap,
&format,
&type,
&no_alpha,
&revert, &swap_rb, 1)) {
glamor_fallback("Unknown pixmap depth %d.\n", pixmap->drawable.depth);
return FALSE;
}
if (glamor_pixmap_upload_prepare(pixmap, format, no_alpha, revert, swap_rb))
return FALSE;
pixmap_priv = glamor_get_pixmap_private(pixmap);
force_clip = pixmap_priv->base.glamor_priv->gl_flavor != GLAMOR_GL_DESKTOP
&& !glamor_check_fbo_size(pixmap_priv->base.glamor_priv, w, h);
if (pixmap_priv->type == GLAMOR_TEXTURE_LARGE || force_clip) {
RegionRec region;
BoxRec box;
int n_region;
glamor_pixmap_clipped_regions *clipped_regions;
void *sub_bits;
int i, j;
sub_bits = malloc(h * stride);
if (sub_bits == NULL)
return FALSE;
box.x1 = x;
box.y1 = y;
box.x2 = x + w;
box.y2 = y + h;
RegionInitBoxes(&region, &box, 1);
if (!force_clip)
clipped_regions =
glamor_compute_clipped_regions(pixmap_priv, &region, &n_region,
0, 0, 0);
else
clipped_regions =
glamor_compute_clipped_regions_ext(pixmap_priv, &region,
&n_region,
pixmap_priv->large.block_w,
pixmap_priv->large.block_h,
0,
0);
DEBUGF("prepare upload %dx%d to a large pixmap %p\n", w, h, pixmap);
for (i = 0; i < n_region; i++) {
BoxPtr boxes;
int nbox;
int temp_stride;
void *temp_bits;
assert(pbo == 0);
glamor_set_pixmap_fbo_current(pixmap_priv, clipped_regions[i].block_idx);
boxes = RegionRects(clipped_regions[i].region);
nbox = RegionNumRects(clipped_regions[i].region);
DEBUGF("split to %d boxes\n", nbox);
for (j = 0; j < nbox; j++) {
temp_stride = PixmapBytePad(boxes[j].x2 - boxes[j].x1,
pixmap->drawable.depth);
if (boxes[j].x1 == x && temp_stride == stride) {
temp_bits = (char *) bits + (boxes[j].y1 - y) * stride;
}
else {
temp_bits = sub_bits;
glamor_put_bits(temp_bits, temp_stride, bits, stride,
pixmap->drawable.bitsPerPixel,
boxes[j].x1 - x, boxes[j].y1 - y,
boxes[j].x2 - boxes[j].x1,
boxes[j].y2 - boxes[j].y1);
}
DEBUGF("upload x %d y %d w %d h %d temp stride %d \n",
boxes[j].x1 - x, boxes[j].y1 - y,
boxes[j].x2 - boxes[j].x1,
boxes[j].y2 - boxes[j].y1, temp_stride);
if (_glamor_upload_bits_to_pixmap_texture
(pixmap, format, type, no_alpha, revert, swap_rb,
boxes[j].x1, boxes[j].y1, boxes[j].x2 - boxes[j].x1,
boxes[j].y2 - boxes[j].y1, temp_stride, temp_bits,
pbo) == FALSE) {
RegionUninit(&region);
free(sub_bits);
assert(0);
return FALSE;
}
}
RegionDestroy(clipped_regions[i].region);
}
free(sub_bits);
free(clipped_regions);
RegionUninit(&region);
return TRUE;
}
else
return _glamor_upload_bits_to_pixmap_texture(pixmap, format, type,
no_alpha, revert, swap_rb,
x, y, w, h, stride, bits,
pbo);
}
enum glamor_pixmap_status
glamor_upload_pixmap_to_texture(PixmapPtr pixmap)
{
glamor_pixmap_private *pixmap_priv;
void *data;
int pbo;
int ret;
pixmap_priv = glamor_get_pixmap_private(pixmap);
if ((pixmap_priv->base.fbo)
&& (pixmap_priv->base.fbo->pbo_valid)) {
data = NULL;
pbo = pixmap_priv->base.fbo->pbo;
}
else {
data = pixmap->devPrivate.ptr;
pbo = 0;
}
if (glamor_upload_sub_pixmap_to_texture(pixmap, 0, 0,
pixmap->drawable.width,
pixmap->drawable.height,
pixmap->devKind, data, pbo))
ret = GLAMOR_UPLOAD_DONE;
else
ret = GLAMOR_UPLOAD_FAILED;
return ret;
}
/*
* as gles2 only support a very small set of color format and
* type when do glReadPixel,
* Before we use glReadPixels to get back a textured pixmap,
* Use shader to convert it to a supported format and thus
* get a new temporary pixmap returned.
* */
glamor_pixmap_fbo *
glamor_es2_pixmap_read_prepare(PixmapPtr source, int x, int y, int w, int h,
GLenum format, GLenum type, int no_alpha,
int revert, int swap_rb)
{
glamor_pixmap_private *source_priv;
glamor_screen_private *glamor_priv;
ScreenPtr screen;
glamor_pixmap_fbo *temp_fbo;
float temp_xscale, temp_yscale, source_xscale, source_yscale;
static float vertices[8];
static float texcoords[8];
screen = source->drawable.pScreen;
glamor_priv = glamor_get_screen_private(screen);
source_priv = glamor_get_pixmap_private(source);
temp_fbo = glamor_create_fbo(glamor_priv, w, h, format, 0);
if (temp_fbo == NULL)
return NULL;
glamor_make_current(glamor_priv);
temp_xscale = 1.0 / w;
temp_yscale = 1.0 / h;
glamor_set_normalize_vcoords((struct glamor_pixmap_private *) NULL,
temp_xscale, temp_yscale, 0, 0, w, h,
vertices);
glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT, GL_FALSE,
2 * sizeof(float), vertices);
glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
pixmap_priv_get_scale(source_priv, &source_xscale, &source_yscale);
glamor_set_normalize_tcoords(source_priv, source_xscale,
source_yscale,
x, y,
x + w, y + h,
texcoords);
glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2, GL_FLOAT, GL_FALSE,
2 * sizeof(float), texcoords);
glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, source_priv->base.fbo->tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glamor_set_destination_pixmap_fbo(temp_fbo, 0, 0, w, h);
glUseProgram(glamor_priv->finish_access_prog[no_alpha]);
glUniform1i(glamor_priv->finish_access_revert[no_alpha], revert);
glUniform1i(glamor_priv->finish_access_swap_rb[no_alpha], swap_rb);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
return temp_fbo;
}
/* fixup a fbo to the exact size as the pixmap. */
/* XXX LARGE pixmap? */
Bool
glamor_fixup_pixmap_priv(ScreenPtr screen, glamor_pixmap_private *pixmap_priv)
{
glamor_pixmap_fbo *old_fbo;
glamor_pixmap_fbo *new_fbo = NULL;
PixmapPtr scratch = NULL;
glamor_pixmap_private *scratch_priv;
DrawablePtr drawable;
GCPtr gc = NULL;
int ret = FALSE;
drawable = &pixmap_priv->base.pixmap->drawable;
if (!GLAMOR_PIXMAP_FBO_NOT_EXACT_SIZE(pixmap_priv))
return TRUE;
old_fbo = pixmap_priv->base.fbo;
if (!old_fbo)
return FALSE;
gc = GetScratchGC(drawable->depth, screen);
if (!gc)
goto fail;
scratch = glamor_create_pixmap(screen, drawable->width, drawable->height,
drawable->depth, GLAMOR_CREATE_PIXMAP_FIXUP);
scratch_priv = glamor_get_pixmap_private(scratch);
if (!scratch_priv->base.fbo)
goto fail;
ValidateGC(&scratch->drawable, gc);
glamor_copy_area(drawable,
&scratch->drawable,
gc, 0, 0, drawable->width, drawable->height, 0, 0);
old_fbo = glamor_pixmap_detach_fbo(pixmap_priv);
new_fbo = glamor_pixmap_detach_fbo(scratch_priv);
glamor_pixmap_attach_fbo(pixmap_priv->base.pixmap, new_fbo);
glamor_pixmap_attach_fbo(scratch, old_fbo);
DEBUGF("old %dx%d type %d\n",
drawable->width, drawable->height, pixmap_priv->type);
DEBUGF("copy tex %d %dx%d to tex %d %dx%d \n",
old_fbo->tex, old_fbo->width, old_fbo->height, new_fbo->tex,
new_fbo->width, new_fbo->height);
ret = TRUE;
fail:
if (gc)
FreeScratchGC(gc);
if (scratch)
glamor_destroy_pixmap(scratch);
return ret;
}
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