int
S9xGTKDisplayDriver::init (void)
{
int padding;
GtkAllocation allocation;
buffer1[0] = malloc (image_padded_size+1024);
buffer1[1] = malloc (scaled_padded_size+1024);
buffer2[0] = malloc (image_padded_size+1024);
buffer2[1] = malloc (scaled_padded_size+1024);
padding = (image_padded_size - image_size) / 2+512;
padded_buffer1[0] = (void *) (((uint8 *) buffer1[0]) + padding);
padded_buffer2[0] = (void *) (((uint8 *) buffer2[0]) + padding);
padding = (scaled_padded_size - scaled_size) / 2;
padded_buffer1[1] = (void *) (((uint8 *) buffer1[1]) + padding);
padded_buffer2[1] = (void *) (((uint8 *) buffer2[1]) + padding);
gtk_widget_get_allocation (drawing_area, &allocation);
gdk_buffer_width = allocation.width;
gdk_buffer_height = allocation.height;
padded_buffer1[2] = malloc (gdk_buffer_width * gdk_buffer_height * 3);
padded_buffer2[2] = malloc (gdk_buffer_width * gdk_buffer_height * 3);
//SSSSSSS
pixbuf = gdk_pixbuf_new_from_data ((guchar *) padded_buffer2[2],
GDK_COLORSPACE_RGB,
FALSE,
8,
gdk_buffer_width,
gdk_buffer_height,
gdk_buffer_width * 3,
NULL,
NULL);
S9xSetEndianess (ENDIAN_MSB);
//SSS
memset (buffer1[0], 0, image_padded_size);
memset (buffer1[1], 0, scaled_padded_size);
memset (buffer2[0], 0, image_padded_size);
memset (buffer2[1], 0, scaled_padded_size);
GFX.Screen1 = (uint16 *) padded_buffer1[0];
GFX.Screen2 = (uint16 *) padded_buffer2[0];
GFX.Pitch = image_width * image_bpp;
return 0;
}
void S9xOpenGLDisplayDriver::update (int width, int height, int yoffset)
{
uint8 *final_buffer = NULL;
int final_pitch;
void *pbo_map = NULL;
int x, y, w, h;
GtkAllocation allocation;
gtk_widget_get_allocation (drawing_area, &allocation);
if (output_window_width != allocation.width ||
output_window_height != allocation.height)
{
resize ();
}
#if GTK_CHECK_VERSION(3,10,0)
int gdk_scale_factor = gdk_window_get_scale_factor (gdk_window);
allocation.width *= gdk_scale_factor;
allocation.height *= gdk_scale_factor;
#endif
if (!legacy)
glActiveTexture (GL_TEXTURE0);
glBindTexture (GL_TEXTURE_2D, texmap);
GLint filter = Settings.BilinearFilter ? GL_LINEAR : GL_NEAREST;
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
GLint clamp = (using_glsl_shaders || !npot) ? GL_CLAMP_TO_BORDER : GL_CLAMP_TO_EDGE;
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, clamp);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, clamp);
glClear (GL_COLOR_BUFFER_BIT);
if (config->scale_method > 0)
{
uint8 *src_buffer = (uint8 *) padded_buffer[0];
int src_pitch = image_width * image_bpp;
uint8 *dst_buffer;
int dst_pitch;
src_buffer += (src_pitch * yoffset);
dst_buffer = (uint8 *) padded_buffer[1];
dst_pitch = scaled_max_width * image_bpp;
final_buffer = (uint8 *) padded_buffer[1];
final_pitch = scaled_max_width * image_bpp;
S9xFilter (src_buffer,
src_pitch,
dst_buffer,
dst_pitch,
width,
height);
}
else
{
final_buffer = (uint8 *) padded_buffer[0];
final_pitch = image_width * image_bpp;
final_buffer += (final_pitch * yoffset);
}
x = width;
y = height;
w = allocation.width;
h = allocation.height;
S9xApplyAspect (x, y, w, h);
glViewport (x, allocation.height - y - h, w, h);
window->set_mouseable_area (x, y, w, h);
update_texture_size (width, height);
if (using_pbos)
{
if (config->pbo_format == 16)
{
glBindBuffer (GL_PIXEL_UNPACK_BUFFER, pbo);
glBufferData (GL_PIXEL_UNPACK_BUFFER,
width * height * 2,
NULL,
GL_STREAM_DRAW);
if (version >= 30)
pbo_map = glMapBufferRange (
GL_PIXEL_UNPACK_BUFFER, 0, width * height * 2,
GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT |
GL_MAP_UNSYNCHRONIZED_BIT);
else
pbo_map = glMapBuffer (GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY);
for (int y = 0; y < height; y++)
{
memcpy ((uint8 *) pbo_map + (width * y * 2),
final_buffer + (y * final_pitch),
width * image_bpp);
}
glUnmapBuffer (GL_PIXEL_UNPACK_BUFFER);
glPixelStorei (GL_UNPACK_ROW_LENGTH, width);
glTexSubImage2D (GL_TEXTURE_2D,
0,
0,
0,
width,
height,
GL_RGB,
GL_UNSIGNED_SHORT_5_6_5,
BUFFER_OFFSET (0));
glBindBuffer (GL_PIXEL_UNPACK_BUFFER, 0);
}
else /* 32-bit color */
{
glBindBuffer (GL_PIXEL_UNPACK_BUFFER, pbo);
glBufferData (GL_PIXEL_UNPACK_BUFFER,
width * height * 4,
NULL,
GL_STREAM_DRAW);
if (version >= 30)
pbo_map = glMapBufferRange (
GL_PIXEL_UNPACK_BUFFER, 0, width * height * 4,
GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT |
GL_MAP_UNSYNCHRONIZED_BIT);
else
pbo_map = glMapBuffer (GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY);
/* Pixel swizzling in software */
S9xSetEndianess (ENDIAN_NORMAL);
S9xConvert (final_buffer,
pbo_map,
final_pitch,
width * 4,
width,
height,
32);
glUnmapBuffer (GL_PIXEL_UNPACK_BUFFER);
glPixelStorei (GL_UNPACK_ROW_LENGTH, width);
glTexSubImage2D (GL_TEXTURE_2D,
0,
0,
0,
width,
height,
GL_BGRA,
GL_UNSIGNED_BYTE,
BUFFER_OFFSET (0));
glBindBuffer (GL_PIXEL_UNPACK_BUFFER, 0);
}
}
else
{
glPixelStorei (GL_UNPACK_ROW_LENGTH, final_pitch / image_bpp);
glTexSubImage2D (GL_TEXTURE_2D,
0,
0,
0,
width,
height,
GL_RGB,
GL_UNSIGNED_SHORT_5_6_5,
final_buffer);
}
if (using_glsl_shaders)
{
glsl_shader->render (texmap, width, height, x, allocation.height - y - h, w, h, S9xViewportCallback);
swap_buffers ();
return;
}
glDrawArrays (GL_TRIANGLE_STRIP, 0, 4);
swap_buffers ();
}
void
S9xOpenGLDisplayDriver::update (int width, int height)
{
GLint filter;
uint8 *final_buffer = NULL;
int final_pitch;
void *pboMemory = NULL;
int x, y, w, h;
if (width <= 0)
{
gdk_window_hide (gdk_window);
return;
}
GtkAllocation allocation;
gtk_widget_get_allocation (drawing_area, &allocation);
if (output_window_width != allocation.width ||
output_window_height != allocation.height)
{
resize_window (allocation.width, allocation.height);
}
/* This avoids messing with the texture parameters every time */
if (config->bilinear_filter != filtering)
{
filter = config->bilinear_filter ? GL_LINEAR : GL_NEAREST;
glTexParameteri (tex_target, GL_TEXTURE_MAG_FILTER, filter);
glTexParameteri (tex_target, GL_TEXTURE_MIN_FILTER, filter);
glTexParameteri (tex_target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri (tex_target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
filtering = config->bilinear_filter;
}
glClear (GL_COLOR_BUFFER_BIT);
glEnable (tex_target);
if (config->scale_method > 0)
{
uint8 *src_buffer = (uint8 *) padded_buffer[0];
int src_pitch = image_width * image_bpp;
uint8 *dst_buffer;
int dst_pitch;
dst_buffer = (uint8 *) padded_buffer[1];
dst_pitch = scaled_max_width * image_bpp;
final_buffer = (uint8 *) padded_buffer[1];
final_pitch = scaled_max_width * image_bpp;
S9xFilter (src_buffer,
src_pitch,
dst_buffer,
dst_pitch,
width,
height);
}
else
{
final_buffer = (uint8 *) padded_buffer[0];
final_pitch = image_width * image_bpp;
}
x = width; y = height;
w = allocation.width; h = allocation.height;
S9xApplyAspect (x, y, w, h);
glViewport (x, y, w, h);
window->set_mouseable_area (x, y, w, h);
update_texture_size (width, height);
if (using_pbos)
{
if (config->pbo_format == PBO_FMT_16)
{
glBindBuffer (GL_PIXEL_UNPACK_BUFFER, pbo);
glBufferData (GL_PIXEL_UNPACK_BUFFER,
width * height * 2,
NULL,
GL_STREAM_DRAW);
pboMemory = glMapBuffer (GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY);
for (int y = 0; y < height; y++)
{
memcpy ((uint8 *) pboMemory + (width * y * 2),
final_buffer + (y * final_pitch),
width * image_bpp);
}
glUnmapBuffer (GL_PIXEL_UNPACK_BUFFER);
glPixelStorei (GL_UNPACK_ROW_LENGTH, width);
glTexSubImage2D (tex_target,
0,
0,
0,
width,
height,
GL_BGRA,
GL_UNSIGNED_SHORT_1_5_5_5_REV,
BUFFER_OFFSET (0));
glBindBuffer (GL_PIXEL_UNPACK_BUFFER, 0);
}
else if (config->pbo_format == PBO_FMT_24)
{
/* Complement width to next multiple of 4 to force line size to
* be a multiple of 4 bytes. Otherwise, packing fails. */
int width_mul_4 = width + ((4 - (width % 4)) % 4);
glBindBuffer (GL_PIXEL_UNPACK_BUFFER, pbo);
glBufferData (GL_PIXEL_UNPACK_BUFFER,
width_mul_4 * height * 3,
NULL,
GL_STREAM_DRAW);
pboMemory = glMapBuffer (GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY);
/* Pixel swizzling in software */
S9xSetEndianess (ENDIAN_MSB);
S9xConvert (final_buffer,
pboMemory,
final_pitch,
width_mul_4 * 3,
width,
height,
24);
glUnmapBuffer (GL_PIXEL_UNPACK_BUFFER);
glPixelStorei (GL_UNPACK_ROW_LENGTH, width_mul_4);
glTexSubImage2D (tex_target,
0,
0,
0,
width,
height,
GL_RGB,
GL_UNSIGNED_BYTE,
BUFFER_OFFSET (0));
glBindBuffer (GL_PIXEL_UNPACK_BUFFER, 0);
}
else /* PBO_FMT_32 */
{
glBindBuffer (GL_PIXEL_UNPACK_BUFFER, pbo);
glBufferData (GL_PIXEL_UNPACK_BUFFER,
width * height * 4,
NULL,
GL_STREAM_DRAW);
pboMemory = glMapBuffer (GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY);
/* Pixel swizzling in software */
#ifdef __BIG_ENDIAN__
S9xSetEndianess (ENDIAN_MSB);
#else
S9xSetEndianess (ENDIAN_LSB);
#endif
S9xConvert (final_buffer,
pboMemory,
final_pitch,
width * 4,
width,
height,
32);
glUnmapBuffer (GL_PIXEL_UNPACK_BUFFER);
glPixelStorei (GL_UNPACK_ROW_LENGTH, width);
glTexSubImage2D (tex_target,
0,
0,
0,
width,
height,
GL_BGRA,
PBO_BGRA_NATIVE_ORDER,
BUFFER_OFFSET (0));
glBindBuffer (GL_PIXEL_UNPACK_BUFFER, 0);
}
}
else
{
glPixelStorei (GL_UNPACK_ROW_LENGTH, final_pitch / image_bpp);
glTexSubImage2D (tex_target,
0,
0,
0,
width,
height,
GL_BGRA,
GL_UNSIGNED_SHORT_1_5_5_5_REV,
final_buffer);
}
if (tex_target == GL_TEXTURE_2D)
{
texcoords[1] = (float) (height) / texture_height;
texcoords[2] = (float) (width) / texture_width;
texcoords[3] = texcoords[1];
texcoords[4] = texcoords[2];
}
else if (tex_target == GL_TEXTURE_RECTANGLE)
{
texcoords[1] = (float) (height);
texcoords[2] = (float) (width);
texcoords[3] = texcoords[1];
texcoords[4] = texcoords[2];
}
if (using_shaders)
{
GLint location;
float inputSize[2] = { width, height };
location = glGetUniformLocation (program, "rubyInputSize");
glUniform2fv (location, 1, inputSize);
float outputSize[2] = {w , h };
location = glGetUniformLocation (program, "rubyOutputSize");
glUniform2fv (location, 1, outputSize);
float textureSize[2] = { texture_width, texture_height };
location = glGetUniformLocation (program, "rubyTextureSize");
glUniform2fv (location, 1, textureSize);
}
glDrawArrays (GL_QUADS, 0, 4);
gl_swap ();
return;
}
int
S9xXVDisplayDriver::init (void)
{
int padding;
int depth = 0, num_formats, num_attrs, highest_formats = 0;
XvImageFormatValues *formats = NULL;
XvAdaptorInfo *adaptors;
XvAttribute *port_attr;
VisualID visualid = None;
unsigned int num_adaptors;
GdkScreen *screen;
GdkWindow *root;
buffer[0] = malloc (image_padded_size);
buffer[1] = malloc (scaled_padded_size);
padding = (image_padded_size - image_size) / 2;
padded_buffer[0] = (void *) (((uint8 *) buffer[0]) + padding);
padding = (scaled_padded_size - scaled_size) / 2;
padded_buffer[1] = (void *) (((uint8 *) buffer[1]) + padding);
memset (buffer[0], 0, image_padded_size);
memset (buffer[1], 0, scaled_padded_size);
/* Setup XV */
gtk_widget_realize (drawing_area);
display = gdk_x11_drawable_get_xdisplay (GDK_DRAWABLE (gtk_widget_get_window (drawing_area)));
screen = gtk_widget_get_screen (drawing_area);
root = gdk_screen_get_root_window (screen);
xv_portid = -1;
XvQueryAdaptors (display,
GDK_WINDOW_XWINDOW (root),
&num_adaptors,
&adaptors);
for (int i = 0; i < (int) num_adaptors; i++)
{
if (adaptors[i].type & XvInputMask &&
adaptors[i].type & XvImageMask)
{
formats = XvListImageFormats (display,
adaptors[i].base_id,
&num_formats);
if (num_formats > highest_formats)
{
xv_portid = adaptors[i].base_id;
highest_formats = num_formats;
visualid = adaptors[i].formats->visual_id;
}
free (formats);
}
}
XvFreeAdaptorInfo (adaptors);
if (xv_portid < 0)
{
fprintf (stderr, "Could not open Xv output port.\n");
return -1;
}
/* Set XV_AUTOPAINT_COLORKEY _only_ if available */
port_attr = XvQueryPortAttributes (display, xv_portid, &num_attrs);
for (int i = 0; i < num_attrs; i++)
{
if (!strcmp (port_attr[i].name, "XV_AUTOPAINT_COLORKEY"))
{
Atom colorkey = None;
colorkey = XInternAtom (display, "XV_AUTOPAINT_COLORKEY", True);
if (colorkey != None)
XvSetPortAttribute (display, xv_portid, colorkey, 1);
}
}
/* Try to find an RGB format */
format = FOURCC_YUY2;
bpp = 100;
formats = XvListImageFormats (display,
xv_portid,
&num_formats);
for (int i = 0; i < num_formats; i++)
{
if (formats[i].id == 0x3 || formats[i].type == XvRGB)
{
if (formats[i].bits_per_pixel < bpp)
{
format = formats[i].id;
bpp = formats[i].bits_per_pixel;
bytes_per_pixel = (bpp == 15) ? 2 : bpp >> 3;
depth = formats[i].depth;
this->rshift = get_inv_shift (formats[i].red_mask, bpp);
this->gshift = get_inv_shift (formats[i].green_mask, bpp);
this->bshift = get_inv_shift (formats[i].blue_mask, bpp);
/* Check for red-blue inversion on SiliconMotion drivers */
if (formats[i].red_mask == 0x001f &&
formats[i].blue_mask == 0x7c00)
{
int copy = this->rshift;
this->rshift = this->bshift;
this->bshift = copy;
}
/* on big-endian Xv still seems to like LSB order */
if (config->force_inverted_byte_order)
S9xSetEndianess (ENDIAN_MSB);
else
S9xSetEndianess (ENDIAN_LSB);
}
}
}
void
S9xOpenGLDisplayDriver::update (int width, int height)
{
GLint filter;
uint8 *final_buffer = NULL;
uint8 *final_buffer2 = NULL;
int combined_pitch;
int c_width, c_height;
void *pboMemory = NULL;
c_width = drawing_area->allocation.width;
c_height = drawing_area->allocation.height;
if (width <= 0)
return;
gl_lock ();
/* This avoids messing with the texture parameters every time */
if (config->bilinear_filter != filtering)
{
filter = config->bilinear_filter ? GL_LINEAR : GL_NEAREST;
glTexParameteri (tex_target, GL_TEXTURE_MAG_FILTER, filter);
glTexParameteri (tex_target, GL_TEXTURE_MIN_FILTER, filter);
glTexParameteri (tex_target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri (tex_target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
filtering = config->bilinear_filter;
}
glClear (GL_COLOR_BUFFER_BIT);
glEnable (tex_target);
if (config->scale_method > 0)
{
/*uint8 *src_buffer = (uint8 *) padded_buffer[0];
int src_pitch = image_width * image_bpp;
uint8 *dst_buffer;
int dst_pitch;
dst_buffer = (uint8 *) padded_buffer[1];
dst_pitch = scaled_max_width * image_bpp;
final_buffer = (uint8 *) padded_buffer[1];
combined_pitch = scaled_max_width * image_bpp;
S9xFilter (src_buffer,
src_pitch,
dst_buffer,
dst_pitch,
width,
height);
src_buffer = (uint8 *) padded_buffer[2];
dst_buffer = (uint8 *) padded_buffer[3];
dst_pitch = scaled_max_width * image_bpp;
final_buffer2 = (uint8 *) padded_buffer[3];
S9xFilter (src_buffer,
src_pitch,
dst_buffer,
dst_pitch,
width,
height);
combine_buffers((uint16*)combined_buffer, (uint16*)final_buffer, (uint16*)final_buffer2,
scaled_max_width, scaled_max_height, image_bpp); */
uint8 *src_buffer = (uint8 *) padded_buffer[0];
int src_pitch = image_width * image_bpp;
uint8 *dst_buffer;
int dst_pitch;
combine_buffers((uint16*)padded_buffer[0], (uint16*)padded_buffer[0], (uint16*)padded_buffer[2],
image_width, image_height, image_bpp);
dst_buffer = (uint8 *) padded_buffer[1];
dst_pitch = scaled_max_width * image_bpp;
final_buffer = (uint8 *) padded_buffer[1];
combined_pitch = scaled_max_width * image_bpp;
S9xFilter (src_buffer,
src_pitch,
dst_buffer,
dst_pitch,
width,
height);
memcpy(combined_buffer, dst_buffer, scaled_max_width * scaled_max_height * image_bpp);
}
else
{
final_buffer = (uint8 *) padded_buffer[0];
final_buffer2 = (uint8 *) padded_buffer[2];
combined_pitch = image_width * image_bpp;
combine_buffers((uint16*)combined_buffer, (uint16*)final_buffer, (uint16*)final_buffer2,
image_width, image_height, image_bpp);
}
double screen_aspect = (double) c_width / (double) c_height;
double snes_aspect = S9xGetAspect ();
double granularity = 1.0 / (double) MAX (c_width, c_height);
if (!config->scale_to_fit)
{
glViewport ((c_width - width) / 2, (c_height - height) / 2,
width, height);
window->set_mouseable_area ((c_width - width) / 2,
(c_height - height) / 2,
width,
height);
}
else if (config->maintain_aspect_ratio &&
!(screen_aspect <= snes_aspect * (1.0 + granularity) &&
screen_aspect >= snes_aspect * (1.0 - granularity)))
{
if (screen_aspect > snes_aspect)
{
glViewport ((c_width - (int)(c_height * snes_aspect)) / 2, 0,
(int)(c_height * snes_aspect), c_height);
window->set_mouseable_area ((c_width -
(int) (c_height * snes_aspect)) / 2,
0,
(int) (c_height * snes_aspect),
c_height);
}
else
{
glViewport (0, (c_height - (int) (c_width / snes_aspect)) / 2,
c_width, (int) (c_width / snes_aspect));
window->set_mouseable_area (0,
(c_height -
(int) (c_width / snes_aspect)) / 2,
c_width,
(int) (c_width / snes_aspect));
}
}
else
{
glViewport (0, 0, c_width, c_height);
window->set_mouseable_area (0, 0, c_width, c_height);
}
if (width > 0 && height > 0)
{
update_texture_size (width, height);
if (using_pbos)
{
if (config->pbo_format == PBO_FMT_16)
{
glBindBuffer (GL_PIXEL_UNPACK_BUFFER, pbo);
glBufferData (GL_PIXEL_UNPACK_BUFFER,
width * height * 2,
NULL,
GL_STREAM_DRAW);
pboMemory = glMapBuffer (GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY);
for (int y = 0; y < height; y++)
{
memcpy ((uint8 *) pboMemory + (width * y * 2),
// TODO MIKEL I accidentally deleted the pointer cast here...
// I should double check that it's correct, but it should be ok
(uint8 *)combined_buffer + (y * combined_pitch),
width * image_bpp);
}
glUnmapBuffer (GL_PIXEL_UNPACK_BUFFER);
glPixelStorei (GL_UNPACK_ROW_LENGTH, width);
glTexSubImage2D (tex_target,
0,
0,
0,
width,
height,
GL_BGRA,
GL_UNSIGNED_SHORT_1_5_5_5_REV,
BUFFER_OFFSET (0));
glBindBuffer (GL_PIXEL_UNPACK_BUFFER, 0);
}
else if (config->pbo_format == PBO_FMT_24)
{
/* Complement width to next multiple of 4 to force line size to
* be a multiple of 4 bytes. Otherwise, packing fails. */
int width_mul_4 = width + ((4 - (width % 4)) % 4);
glBindBuffer (GL_PIXEL_UNPACK_BUFFER, pbo);
glBufferData (GL_PIXEL_UNPACK_BUFFER,
width_mul_4 * height * 3,
NULL,
GL_STREAM_DRAW);
pboMemory = glMapBuffer (GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY);
/* Pixel swizzling in software */
S9xSetEndianess (ENDIAN_MSB);
S9xConvert (combined_buffer,
pboMemory,
combined_pitch,
width_mul_4 * 3,
width,
height,
24);
glUnmapBuffer (GL_PIXEL_UNPACK_BUFFER);
glPixelStorei (GL_UNPACK_ROW_LENGTH, width_mul_4);
glTexSubImage2D (tex_target,
0,
0,
0,
width,
height,
GL_RGB,
GL_UNSIGNED_BYTE,
BUFFER_OFFSET (0));
glBindBuffer (GL_PIXEL_UNPACK_BUFFER, 0);
}
else /* PBO_FMT_32 */
{
glBindBuffer (GL_PIXEL_UNPACK_BUFFER, pbo);
glBufferData (GL_PIXEL_UNPACK_BUFFER,
width * height * 4,
NULL,
GL_STREAM_DRAW);
pboMemory = glMapBuffer (GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY);
/* Pixel swizzling in software */
#ifdef __BIG_ENDIAN__
S9xSetEndianess (ENDIAN_MSB);
#else
S9xSetEndianess (ENDIAN_LSB);
#endif
S9xConvert (combined_buffer,
pboMemory,
combined_pitch,
width * 4,
width,
height,
32);
glUnmapBuffer (GL_PIXEL_UNPACK_BUFFER);
glPixelStorei (GL_UNPACK_ROW_LENGTH, width);
glTexSubImage2D (tex_target,
0,
0,
0,
width,
height,
GL_BGRA,
PBO_BGRA_NATIVE_ORDER,
BUFFER_OFFSET (0));
glBindBuffer (GL_PIXEL_UNPACK_BUFFER, 0);
}
}
else
{
glPixelStorei (GL_UNPACK_ROW_LENGTH, combined_pitch / image_bpp);
glTexSubImage2D (tex_target,
0,
0,
0,
width,
height,
GL_BGRA,
GL_UNSIGNED_SHORT_1_5_5_5_REV,
combined_buffer);
}
if (tex_target == GL_TEXTURE_2D)
{
texcoords[1] = (float) (height) / texture_height;
texcoords[2] = (float) (width) / texture_width;
texcoords[3] = texcoords[1];
texcoords[4] = texcoords[2];
}
else if (tex_target == GL_TEXTURE_RECTANGLE)
{
texcoords[1] = (float) (height);
texcoords[2] = (float) (width);
texcoords[3] = texcoords[1];
texcoords[4] = texcoords[2];
}
glDrawArrays (GL_QUADS, 0, 4);
}
gl_unlock ();
gl_swap ();
return;
}
