ef3ea0f46b
As we already checked the status when create the fbo. Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
744 lines
20 KiB
C
744 lines
20 KiB
C
#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <stdlib.h>
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#include "glamor_priv.h"
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/**
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* Sets the offsets to add to coordinates to make them address the same bits in
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* the backing drawable. These coordinates are nonzero only for redirected
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* windows.
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*/
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void
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glamor_get_drawable_deltas(DrawablePtr drawable, PixmapPtr pixmap,
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int *x, int *y)
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{
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#ifdef COMPOSITE
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if (drawable->type == DRAWABLE_WINDOW) {
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*x = -pixmap->screen_x;
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*y = -pixmap->screen_y;
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return;
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}
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#endif
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*x = 0;
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*y = 0;
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}
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static void
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_glamor_pixmap_validate_filling(glamor_screen_private *glamor_priv,
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glamor_pixmap_private *pixmap_priv)
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{
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GLfloat vertices[8];
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glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT, GL_FALSE,
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2 * sizeof(float), vertices);
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glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
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glUseProgram(glamor_priv->solid_prog);
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glUniform4fv(glamor_priv->solid_color_uniform_location,
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1, pixmap_priv->pending_op.fill.color4fv);
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vertices[0] = -1;
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vertices[1] = -1;
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vertices[2] = 1;
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vertices[3] = -1;
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vertices[4] = 1;
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vertices[5] = 1;
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vertices[6] = -1;
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vertices[7] = 1;
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glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
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glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
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glUseProgram(0);
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pixmap_priv->pending_op.type = GLAMOR_PENDING_NONE;
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}
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glamor_pixmap_validate_function_t pixmap_validate_funcs[] = {
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NULL,
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_glamor_pixmap_validate_filling
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};
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void
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glamor_pixmap_init(ScreenPtr screen)
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{
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glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
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glamor_priv->pixmap_validate_funcs = pixmap_validate_funcs;
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}
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void
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glamor_validate_pixmap(PixmapPtr pixmap)
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{
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glamor_pixmap_validate_function_t validate_op;
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glamor_screen_private *glamor_priv =
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glamor_get_screen_private(pixmap->drawable.pScreen);
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glamor_pixmap_private *pixmap_priv =
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glamor_get_pixmap_private(pixmap);
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validate_op = glamor_priv->pixmap_validate_funcs[pixmap_priv->pending_op.type];
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if (validate_op) {
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(*validate_op)(glamor_priv, pixmap_priv);
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}
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}
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void
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glamor_set_destination_pixmap_priv_nc(glamor_pixmap_private *pixmap_priv)
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{
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glBindFramebuffer(GL_FRAMEBUFFER, pixmap_priv->fb);
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#ifndef GLAMOR_GLES2
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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#endif
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glViewport(0, 0,
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pixmap_priv->container->drawable.width,
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pixmap_priv->container->drawable.height);
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}
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int
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glamor_set_destination_pixmap_priv(glamor_pixmap_private *pixmap_priv)
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{
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if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
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return -1;
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glamor_set_destination_pixmap_priv_nc(pixmap_priv);
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return 0;
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}
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int
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glamor_set_destination_pixmap(PixmapPtr pixmap)
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{
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int err;
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glamor_pixmap_private *pixmap_priv = glamor_get_pixmap_private(pixmap);
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err = glamor_set_destination_pixmap_priv(pixmap_priv);
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return err;
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}
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Bool
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glamor_set_planemask(PixmapPtr pixmap, unsigned long planemask)
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{
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if (glamor_pm_is_solid(&pixmap->drawable, planemask)) {
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return GL_TRUE;
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}
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glamor_fallback("unsupported planemask %lx\n", planemask);
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return GL_FALSE;
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}
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void
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glamor_set_alu(unsigned char alu)
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{
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#ifndef GLAMOR_GLES2
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if (alu == GXcopy) {
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glDisable(GL_COLOR_LOGIC_OP);
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return;
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}
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glEnable(GL_COLOR_LOGIC_OP);
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switch (alu) {
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case GXclear:
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glLogicOp(GL_CLEAR);
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break;
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case GXand:
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glLogicOp(GL_AND);
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break;
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case GXandReverse:
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glLogicOp(GL_AND_REVERSE);
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break;
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case GXandInverted:
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glLogicOp(GL_AND_INVERTED);
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break;
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case GXnoop:
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glLogicOp(GL_NOOP);
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break;
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case GXxor:
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glLogicOp(GL_XOR);
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break;
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case GXor:
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glLogicOp(GL_OR);
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break;
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case GXnor:
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glLogicOp(GL_NOR);
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break;
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case GXequiv:
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glLogicOp(GL_EQUIV);
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break;
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case GXinvert:
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glLogicOp(GL_INVERT);
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break;
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case GXorReverse:
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glLogicOp(GL_OR_REVERSE);
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break;
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case GXcopyInverted:
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glLogicOp(GL_COPY_INVERTED);
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break;
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case GXorInverted:
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glLogicOp(GL_OR_INVERTED);
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break;
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case GXnand:
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glLogicOp(GL_NAND);
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break;
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case GXset:
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glLogicOp(GL_SET);
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break;
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default:
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FatalError("unknown logic op\n");
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}
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#else
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if (alu != GXcopy)
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ErrorF("unsupported alu %x \n", alu);
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#endif
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}
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/**
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* Upload pixmap to a specified texture.
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* This texture may not be the one attached to it.
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**/
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int in_restore = 0;
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static void
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__glamor_upload_pixmap_to_texture(PixmapPtr pixmap, GLenum format, GLenum type, GLuint tex)
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{
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glamor_pixmap_private *pixmap_priv = glamor_get_pixmap_private(pixmap);
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glamor_screen_private *glamor_priv = glamor_get_screen_private(pixmap->drawable.pScreen);
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unsigned int stride, row_length;
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void *texels;
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GLenum iformat;
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switch (pixmap->drawable.depth) {
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#if 0
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case 8:
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iformat = GL_ALPHA;
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break;
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#endif
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case 24:
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iformat = GL_RGB;
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break;
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default:
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iformat = GL_RGBA;
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break;
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}
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if (glamor_priv->gl_flavor == GLAMOR_GL_ES2) {
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iformat = format;
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}
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stride = pixmap->devKind;
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row_length = (stride * 8) / pixmap->drawable.bitsPerPixel;
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glBindTexture(GL_TEXTURE_2D, tex);
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if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP) {
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glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
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glPixelStorei(GL_UNPACK_ROW_LENGTH, row_length);
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}
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else {
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glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
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}
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if (pixmap_priv->pbo && pixmap_priv->pbo_valid) {
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texels = NULL;
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glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pixmap_priv->pbo);
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}
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else
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texels = pixmap->devPrivate.ptr;
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glTexImage2D(GL_TEXTURE_2D,
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0,
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iformat,
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pixmap->drawable.width,
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pixmap->drawable.height, 0,
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format, type, texels);
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}
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/*
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* Load texture from the pixmap's data pointer and then
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* draw the texture to the fbo, and flip the y axis.
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* */
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static void
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_glamor_upload_pixmap_to_texture(PixmapPtr pixmap, GLenum format,
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GLenum type, int no_alpha, int no_revert,
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int flip)
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{
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glamor_pixmap_private *pixmap_priv = glamor_get_pixmap_private(pixmap);
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glamor_screen_private *glamor_priv =
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glamor_get_screen_private(pixmap->drawable.pScreen);
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static float vertices[8] = {-1, -1,
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1, -1,
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1, 1,
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-1, 1};
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static float texcoords[8] = {0, 1,
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1, 1,
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1, 0,
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0, 0};
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static float texcoords_inv[8] = {0, 0,
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1, 0,
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1, 1,
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0, 1};
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float *ptexcoords;
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GLuint tex;
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int need_flip;
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need_flip = (flip && !glamor_priv->yInverted);
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/* Try fast path firstly, upload the pixmap to the texture attached
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* to the fbo directly. */
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if (no_alpha == 0 && no_revert == 1 && !need_flip) {
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__glamor_upload_pixmap_to_texture(pixmap, format, type, pixmap_priv->tex);
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return;
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}
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if (need_flip)
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ptexcoords = texcoords;
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else
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ptexcoords = texcoords_inv;
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/* Slow path, we need to flip y or wire alpha to 1. */
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glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT, GL_FALSE,
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2 * sizeof(float),
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vertices);
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glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
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glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2, GL_FLOAT, GL_FALSE,
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2 * sizeof(float),
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ptexcoords);
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glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
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glamor_set_destination_pixmap_priv_nc(pixmap_priv);
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glGenTextures(1, &tex);
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__glamor_upload_pixmap_to_texture(pixmap, format, type, tex);
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glActiveTexture(GL_TEXTURE0);
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glBindTexture(GL_TEXTURE_2D, tex);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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#ifndef GLAMOR_GLES2
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glEnable(GL_TEXTURE_2D);
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#endif
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glUseProgram(glamor_priv->finish_access_prog[no_alpha]);
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glUniform1i(glamor_priv->finish_access_no_revert[no_alpha], no_revert);
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glUniform1i(glamor_priv->finish_access_swap_rb[no_alpha],0);
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glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
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#ifndef GLAMOR_GLES2
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glDisable(GL_TEXTURE_2D);
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#endif
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glUseProgram(0);
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glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
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glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
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glDeleteTextures(1, &tex);
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glBindFramebuffer(GL_FRAMEBUFFER, 0);
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}
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void
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glamor_pixmap_ensure_fb(PixmapPtr pixmap)
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{
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int status;
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glamor_pixmap_private *pixmap_priv = glamor_get_pixmap_private(pixmap);
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if (pixmap_priv->fb == 0)
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glGenFramebuffers(1, &pixmap_priv->fb);
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assert(pixmap_priv->tex != 0);
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glBindFramebuffer(GL_FRAMEBUFFER, pixmap_priv->fb);
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glFramebufferTexture2D(GL_FRAMEBUFFER,
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GL_COLOR_ATTACHMENT0,
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GL_TEXTURE_2D,
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pixmap_priv->tex,
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0);
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status = glCheckFramebufferStatus (GL_FRAMEBUFFER);
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if (status != GL_FRAMEBUFFER_COMPLETE) {
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const char *str;
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switch (status) {
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case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT: str= "incomplete attachment"; break;
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case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: str= "incomplete/missing attachment"; break;
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case GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER: str= "incomplete draw buffer"; break;
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case GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER: str= "incomplete read buffer"; break;
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case GL_FRAMEBUFFER_UNSUPPORTED: str= "unsupported"; break;
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case GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE: str= "incomplete multiple"; break;
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default: str = "unknown error"; break;
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}
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LogMessageVerb(X_INFO, 0,
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"destination is framebuffer incomplete: %s [%#x]\n",
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str, status);
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assert(0);
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}
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}
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/*
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* Prepare to upload a pixmap to texture memory.
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* no_alpha equals 1 means the format needs to wire alpha to 1.
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* Two condtion need to setup a fbo for a pixmap
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* 1. !yInverted, we need to do flip if we are not yInverted.
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* 2. no_alpha != 0, we need to wire the alpha.
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* */
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static int
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glamor_pixmap_upload_prepare(PixmapPtr pixmap, int no_alpha, int no_revert)
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{
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int need_fbo;
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glamor_pixmap_private *pixmap_priv = glamor_get_pixmap_private(pixmap);
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glamor_screen_private *glamor_priv = glamor_get_screen_private(pixmap->drawable.pScreen);
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if (!glamor_check_fbo_size(glamor_priv, pixmap->drawable.width , pixmap->drawable.height)
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|| !glamor_check_fbo_depth(pixmap->drawable.depth)) {
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glamor_fallback("upload failed reason: bad size or depth %d x %d @depth %d \n",
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pixmap->drawable.width, pixmap->drawable.height, pixmap->drawable.depth);
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return -1;
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}
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if (GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
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return 0;
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if (no_alpha != 0 || no_revert == 0 || !glamor_priv->yInverted)
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need_fbo = 1;
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else
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need_fbo = 0;
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if (pixmap_priv->tex == 0)
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glGenTextures(1, &pixmap_priv->tex);
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if (need_fbo) {
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glBindTexture(GL_TEXTURE_2D, pixmap_priv->tex);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, pixmap->drawable.width,
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pixmap->drawable.height, 0,
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GL_RGBA, GL_UNSIGNED_BYTE, NULL);
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glamor_pixmap_ensure_fb(pixmap);
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}
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return 0;
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}
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enum glamor_pixmap_status
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glamor_upload_pixmap_to_texture(PixmapPtr pixmap)
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{
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GLenum format, type;
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int no_alpha, no_revert;
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if (glamor_get_tex_format_type_from_pixmap(pixmap,
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&format,
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&type,
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&no_alpha,
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&no_revert)) {
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glamor_fallback("Unknown pixmap depth %d.\n", pixmap->drawable.depth);
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return GLAMOR_UPLOAD_FAILED;
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}
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if (glamor_pixmap_upload_prepare(pixmap, no_alpha, no_revert))
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return GLAMOR_UPLOAD_FAILED;
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glamor_debug_output(GLAMOR_DEBUG_TEXTURE_DYNAMIC_UPLOAD,
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"Uploading pixmap %p %dx%d depth%d.\n",
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pixmap,
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pixmap->drawable.width,
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pixmap->drawable.height,
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pixmap->drawable.depth);
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_glamor_upload_pixmap_to_texture(pixmap, format, type, no_alpha, no_revert, 1);
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return GLAMOR_UPLOAD_DONE;
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}
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#if 0
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enum glamor_pixmap_status
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glamor_upload_pixmap_to_texure_from_data(PixmapPtr pixmap, void *data)
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{
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enum glamor_pixmap_status upload_status;
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glamor_pixmap_private *pixmap_priv = glamor_get_pixmap_private(pixmap);
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assert(pixmap_priv->pbo_valid == 0);
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assert(pixmap->devPrivate.ptr == NULL);
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pixmap->devPrivate.ptr = data;
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upload_status = glamor_upload_pixmap_to_texture(pixmap);
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pixmap->devPrivate.ptr = NULL;
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return upload_status;
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}
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#endif
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void
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glamor_restore_pixmap_to_texture(PixmapPtr pixmap)
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{
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GLenum format, type;
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int no_alpha, no_revert;
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if (glamor_get_tex_format_type_from_pixmap(pixmap,
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&format,
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&type,
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&no_alpha,
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&no_revert)) {
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ErrorF("Unknown pixmap depth %d.\n", pixmap->drawable.depth);
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assert(0);
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}
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in_restore = 1;
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_glamor_upload_pixmap_to_texture(pixmap, format, type, no_alpha, no_revert, 1);
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in_restore = 0;
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}
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/*
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* as gles2 only support a very small set of color format and
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* type when do glReadPixel,
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* Before we use glReadPixels to get back a textured pixmap,
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* Use shader to convert it to a supported format and thus
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* get a new temporary pixmap returned.
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* */
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PixmapPtr
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glamor_es2_pixmap_read_prepare(PixmapPtr source, GLenum *format,
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GLenum *type, int no_alpha, int no_revert)
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{
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glamor_pixmap_private *source_priv;
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glamor_screen_private *glamor_priv;
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ScreenPtr screen;
|
|
PixmapPtr temp_pixmap;
|
|
glamor_pixmap_private *temp_pixmap_priv;
|
|
static float vertices[8] = {-1, -1,
|
|
1, -1,
|
|
1, 1,
|
|
-1, 1};
|
|
static float texcoords[8] = {0, 0,
|
|
1, 0,
|
|
1, 1,
|
|
0, 1};
|
|
|
|
int swap_rb = 0;
|
|
|
|
screen = source->drawable.pScreen;
|
|
|
|
glamor_priv = glamor_get_screen_private(screen);
|
|
source_priv = glamor_get_pixmap_private(source);
|
|
if (*format == GL_BGRA) {
|
|
*format = GL_RGBA;
|
|
swap_rb = 1;
|
|
}
|
|
|
|
|
|
temp_pixmap = (*screen->CreatePixmap)(screen,
|
|
source->drawable.width,
|
|
source->drawable.height,
|
|
source->drawable.depth,
|
|
0);
|
|
|
|
temp_pixmap_priv = glamor_get_pixmap_private(temp_pixmap);
|
|
|
|
glBindTexture(GL_TEXTURE_2D, temp_pixmap_priv->tex);
|
|
glTexImage2D(GL_TEXTURE_2D, 0, *format, source->drawable.width,
|
|
source->drawable.height, 0,
|
|
*format, *type, NULL);
|
|
|
|
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),
|
|
texcoords);
|
|
glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
|
|
|
|
glActiveTexture(GL_TEXTURE0);
|
|
glBindTexture(GL_TEXTURE_2D, source_priv->tex);
|
|
|
|
glamor_set_destination_pixmap_priv_nc(temp_pixmap_priv);
|
|
|
|
glUseProgram(glamor_priv->finish_access_prog[no_alpha]);
|
|
glUniform1i(glamor_priv->finish_access_no_revert[no_alpha], no_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);
|
|
glUseProgram(0);
|
|
glFlush();
|
|
return temp_pixmap;
|
|
}
|
|
|
|
|
|
/**
|
|
* Move a pixmap to CPU memory.
|
|
* The input data is the pixmap's fbo.
|
|
* The output data is at pixmap->devPrivate.ptr. We always use pbo
|
|
* to read the fbo and then map it to va. If possible, we will use
|
|
* it directly as devPrivate.ptr.
|
|
* If successfully download a fbo to cpu then return TRUE.
|
|
* Otherwise return FALSE.
|
|
**/
|
|
|
|
Bool
|
|
glamor_download_pixmap_to_cpu(PixmapPtr pixmap, glamor_access_t access)
|
|
{
|
|
glamor_pixmap_private *pixmap_priv = glamor_get_pixmap_private(pixmap);
|
|
unsigned int stride, row_length, y;
|
|
GLenum format, type, gl_access, gl_usage;
|
|
int no_alpha, no_revert;
|
|
uint8_t *data = NULL, *read;
|
|
PixmapPtr temp_pixmap = NULL;
|
|
ScreenPtr screen;
|
|
glamor_screen_private *glamor_priv =
|
|
glamor_get_screen_private(pixmap->drawable.pScreen);
|
|
|
|
screen = pixmap->drawable.pScreen;
|
|
if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
|
|
return TRUE;
|
|
if (glamor_get_tex_format_type_from_pixmap(pixmap,
|
|
&format,
|
|
&type,
|
|
&no_alpha,
|
|
&no_revert)) {
|
|
ErrorF("Unknown pixmap depth %d.\n", pixmap->drawable.depth);
|
|
assert(0); // Should never happen.
|
|
return FALSE;
|
|
}
|
|
|
|
pixmap_priv->access_mode = access;
|
|
glamor_debug_output(GLAMOR_DEBUG_TEXTURE_DOWNLOAD,
|
|
"Downloading pixmap %p %dx%d depth%d\n",
|
|
pixmap,
|
|
pixmap->drawable.width,
|
|
pixmap->drawable.height,
|
|
pixmap->drawable.depth);
|
|
|
|
stride = pixmap->devKind;
|
|
|
|
glamor_set_destination_pixmap_priv_nc(pixmap_priv);
|
|
/* XXX we may don't need to validate it on GPU here,
|
|
* we can just validate it on CPU. */
|
|
glamor_validate_pixmap(pixmap);
|
|
|
|
if (glamor_priv->gl_flavor == GLAMOR_GL_ES2
|
|
&& ((format != GL_RGBA && format != GL_RGB && format != GL_ALPHA) || no_revert != 1)) {
|
|
|
|
temp_pixmap = glamor_es2_pixmap_read_prepare(pixmap, &format, &type, no_alpha, no_revert);
|
|
|
|
}
|
|
switch (access) {
|
|
case GLAMOR_ACCESS_RO:
|
|
gl_access = GL_READ_ONLY;
|
|
gl_usage = GL_STREAM_READ;
|
|
break;
|
|
case GLAMOR_ACCESS_WO:
|
|
data = malloc(stride * pixmap->drawable.height);
|
|
goto done;
|
|
break;
|
|
case GLAMOR_ACCESS_RW:
|
|
gl_access = GL_READ_WRITE;
|
|
gl_usage = GL_DYNAMIC_DRAW;
|
|
break;
|
|
default:
|
|
ErrorF("Glamor: Invalid access code. %d\n", access);
|
|
assert(0);
|
|
}
|
|
if (glamor_priv->gl_flavor == GLAMOR_GL_ES2) {
|
|
data = malloc(stride * pixmap->drawable.height);
|
|
}
|
|
row_length = (stride * 8) / pixmap->drawable.bitsPerPixel;
|
|
|
|
if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP) {
|
|
glPixelStorei(GL_PACK_ALIGNMENT, 1);
|
|
glPixelStorei(GL_PACK_ROW_LENGTH, row_length);
|
|
}
|
|
else {
|
|
glPixelStorei(GL_PACK_ALIGNMENT, 4);
|
|
// glPixelStorei(GL_PACK_ROW_LENGTH, 0);
|
|
}
|
|
|
|
if (glamor_priv->has_pack_invert || glamor_priv->yInverted) {
|
|
|
|
if (!glamor_priv->yInverted) {
|
|
assert(glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP);
|
|
glPixelStorei(GL_PACK_INVERT_MESA, 1);
|
|
}
|
|
|
|
if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP) {
|
|
if (pixmap_priv->pbo == 0)
|
|
glGenBuffers (1, &pixmap_priv->pbo);
|
|
glBindBuffer (GL_PIXEL_PACK_BUFFER, pixmap_priv->pbo);
|
|
glBufferData (GL_PIXEL_PACK_BUFFER,
|
|
stride * pixmap->drawable.height,
|
|
NULL, gl_usage);
|
|
glReadPixels (0, 0,
|
|
row_length, pixmap->drawable.height,
|
|
format, type, 0);
|
|
data = glMapBuffer (GL_PIXEL_PACK_BUFFER, gl_access);
|
|
pixmap_priv->pbo_valid = TRUE;
|
|
|
|
if (!glamor_priv->yInverted) {
|
|
assert(glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP);
|
|
glPixelStorei(GL_PACK_INVERT_MESA, 0);
|
|
}
|
|
glBindBuffer (GL_PIXEL_PACK_BUFFER, 0);
|
|
} else {
|
|
if (type == GL_UNSIGNED_SHORT_1_5_5_5_REV)
|
|
type = GL_UNSIGNED_SHORT_5_5_5_1;
|
|
glReadPixels (0, 0,
|
|
pixmap->drawable.width, pixmap->drawable.height,
|
|
format, type, data);
|
|
}
|
|
} else {
|
|
data = malloc(stride * pixmap->drawable.height);
|
|
assert(data);
|
|
if (access != GLAMOR_ACCESS_WO) {
|
|
if (pixmap_priv->pbo == 0)
|
|
glGenBuffers(1, &pixmap_priv->pbo);
|
|
glBindBuffer(GL_PIXEL_PACK_BUFFER, pixmap_priv->pbo);
|
|
glBufferData(GL_PIXEL_PACK_BUFFER,
|
|
stride * pixmap->drawable.height,
|
|
NULL, GL_STREAM_READ);
|
|
glReadPixels (0, 0, row_length, pixmap->drawable.height,
|
|
format, type, 0);
|
|
read = glMapBuffer(GL_PIXEL_PACK_BUFFER, GL_READ_ONLY);
|
|
|
|
for (y = 0; y < pixmap->drawable.height; y++)
|
|
memcpy(data + y * stride,
|
|
read + (pixmap->drawable.height - y - 1) * stride, stride);
|
|
glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
|
|
glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
|
|
pixmap_priv->pbo_valid = FALSE;
|
|
glDeleteBuffers(1, &pixmap_priv->pbo);
|
|
pixmap_priv->pbo = 0;
|
|
}
|
|
}
|
|
|
|
glBindFramebuffer(GL_FRAMEBUFFER, 0);
|
|
done:
|
|
pixmap->devPrivate.ptr = data;
|
|
|
|
if (temp_pixmap) {
|
|
glFlush();
|
|
(*screen->DestroyPixmap)(temp_pixmap);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
_glamor_destroy_upload_pixmap(PixmapPtr pixmap)
|
|
{
|
|
glamor_pixmap_private *pixmap_priv = glamor_get_pixmap_private(pixmap);
|
|
|
|
assert(pixmap_priv->gl_fbo == 0);
|
|
if (pixmap_priv->fb)
|
|
glDeleteFramebuffers(1, &pixmap_priv->fb);
|
|
if (pixmap_priv->tex)
|
|
glDeleteTextures(1, &pixmap_priv->tex);
|
|
if (pixmap_priv->pbo)
|
|
glDeleteBuffers(1, &pixmap_priv->pbo);
|
|
pixmap_priv->fb = pixmap_priv->tex = pixmap_priv->pbo = 0;
|
|
|
|
}
|
|
|
|
void glamor_destroy_upload_pixmap(PixmapPtr pixmap)
|
|
{
|
|
_glamor_destroy_upload_pixmap(pixmap);
|
|
}
|
|
|