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Use INT_8_8_8_8_REV for readbacks.

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Allows use of scaler_ctx, also a lot faster on Intel chips, possibly
others as well.
This commit is contained in:
Themaister 2012-11-21 22:12:56 +01:00
parent b58fdce36a
commit 7445e891a8
2 changed files with 27 additions and 10 deletions
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36
gfx/gl.c
View File

@ -1087,7 +1087,7 @@ static void gl_pbo_async_readback(gl_t *gl)
RARCH_PERFORMANCE_START(async_readback);
glReadPixels(gl->vp.x, gl->vp.y,
gl->vp.width, gl->vp.height,
GL_BGRA, GL_UNSIGNED_BYTE, NULL);
GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, NULL);
RARCH_PERFORMANCE_STOP(async_readback);
pglBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
@ -1233,7 +1233,10 @@ static void gl_free(void *data)
#ifndef HAVE_OPENGLES
if (gl->pbo_readback_enable)
{
pglDeleteBuffers(4, gl->pbo_readback);
scaler_ctx_gen_reset(&gl->pbo_readback_scaler);
}
#endif
#ifdef HAVE_FBO
@ -1356,6 +1359,25 @@ static void gl_init_pbo_readback(gl_t *gl)
NULL, GL_STREAM_READ);
}
pglBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
struct scaler_ctx *scaler = &gl->pbo_readback_scaler;
scaler->in_width = gl->vp.width;
scaler->in_height = gl->vp.height;
scaler->out_width = gl->vp.width;
scaler->out_height = gl->vp.height;
scaler->in_stride = gl->vp.width * sizeof(uint32_t);
scaler->out_stride = gl->vp.width * 3;
scaler->in_fmt = SCALER_FMT_ARGB8888;
scaler->out_fmt = SCALER_FMT_BGR24;
scaler->scaler_type = SCALER_FMT_BGR24;
if (!scaler_ctx_gen_filter(scaler))
{
gl->pbo_readback_enable = false;
RARCH_ERR("Failed to init pixel conversion for PBO.\n");
pglDeleteBuffers(4, gl->pbo_readback);
}
#else
(void)gl;
#endif
@ -1610,7 +1632,6 @@ static bool gl_read_viewport(void *data, uint8_t *buffer)
RARCH_PERFORMANCE_INIT(read_viewport);
RARCH_PERFORMANCE_START(read_viewport);
#ifdef HAVE_OPENGLES
glPixelStorei(GL_PACK_ALIGNMENT, get_alignment(gl->vp.width * 3));
glReadPixels(gl->vp.x, gl->vp.y,
@ -1633,19 +1654,14 @@ static bool gl_read_viewport(void *data, uint8_t *buffer)
return false;
pglBindBuffer(GL_PIXEL_PACK_BUFFER, gl->pbo_readback[gl->pbo_readback_index]);
const uint8_t *ptr = (const uint8_t*)pglMapBuffer(GL_PIXEL_PACK_BUFFER, GL_READ_ONLY);
const void *ptr = pglMapBuffer(GL_PIXEL_PACK_BUFFER, GL_READ_ONLY);
if (!ptr)
{
RARCH_ERR("Failed to map pixel unpack buffer.\n");
return false;
}
unsigned pixels = gl->vp.width * gl->vp.height;
for (unsigned i = 0; i < pixels; i++, buffer += 3, ptr += 4)
{
buffer[0] = ptr[0];
buffer[1] = ptr[1];
buffer[2] = ptr[2];
}
scaler_ctx_scale(&gl->pbo_readback_scaler, buffer, ptr);
pglUnmapBuffer(GL_PIXEL_PACK_BUFFER);
pglBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
}

1
gfx/gl_common.h
View File

@ -279,6 +279,7 @@ typedef struct gl
bool pbo_readback_enable;
bool pbo_readback_valid;
unsigned pbo_readback_index;
struct scaler_ctx pbo_readback_scaler;
#endif
} gl_t;