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gl-renderer: Split gl_renderer_attach() into smaller functions

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This commit is contained in:
Ander Conselvan de Oliveira
2013-06-07 16:52:46 +03:00
committed by Kristian Høgsberg
parent 6be5f439d5
commit 047e9b97b3
1 changed files with 119 additions and 94 deletions
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src/gl-renderer.c
+119 -94
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@@ -1200,6 +1200,116 @@ ensure_textures(struct gl_surface_state *gs, int num_textures)
glBindTexture(gs->target, 0);
}
static void
gl_renderer_attach_shm(struct weston_surface *es, struct weston_buffer *buffer,
struct wl_shm_buffer *shm_buffer)
{
struct weston_compositor *ec = es->compositor;
struct gl_renderer *gr = get_renderer(ec);
struct gl_surface_state *gs = get_surface_state(es);
buffer->shm_buffer = shm_buffer;
buffer->width = wl_shm_buffer_get_width(shm_buffer);
buffer->height = wl_shm_buffer_get_height(shm_buffer);
/* Only allocate a texture if it doesn't match existing one.
* If a switch from DRM allocated buffer to a SHM buffer is
* happening, we need to allocate a new texture buffer. */
if (wl_shm_buffer_get_stride(shm_buffer) / 4 != gs->pitch ||
buffer->height != gs->height ||
gs->buffer_type != BUFFER_TYPE_SHM) {
gs->pitch = wl_shm_buffer_get_stride(shm_buffer) / 4;
gs->height = buffer->height;
gs->target = GL_TEXTURE_2D;
gs->buffer_type = BUFFER_TYPE_SHM;
gs->needs_full_upload = 1;
ensure_textures(gs, 1);
glBindTexture(GL_TEXTURE_2D, gs->textures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
gs->pitch, buffer->height, 0,
GL_BGRA_EXT, GL_UNSIGNED_BYTE, NULL);
}
if (wl_shm_buffer_get_format(shm_buffer) == WL_SHM_FORMAT_XRGB8888)
gs->shader = &gr->texture_shader_rgbx;
else
gs->shader = &gr->texture_shader_rgba;
}
static void
gl_renderer_attach_egl(struct weston_surface *es, struct weston_buffer *buffer,
uint32_t format)
{
struct weston_compositor *ec = es->compositor;
struct gl_renderer *gr = get_renderer(ec);
struct gl_surface_state *gs = get_surface_state(es);
EGLint attribs[3];
int i, num_planes;
buffer->legacy_buffer = (struct wl_buffer *)buffer->resource;
gr->query_buffer(gr->egl_display, buffer->legacy_buffer,
EGL_WIDTH, &buffer->width);
gr->query_buffer(gr->egl_display, buffer->legacy_buffer,
EGL_HEIGHT, &buffer->height);
for (i = 0; i < gs->num_images; i++)
gr->destroy_image(gr->egl_display, gs->images[i]);
gs->num_images = 0;
gs->target = GL_TEXTURE_2D;
switch (format) {
case EGL_TEXTURE_RGB:
case EGL_TEXTURE_RGBA:
default:
num_planes = 1;
gs->shader = &gr->texture_shader_rgba;
break;
case EGL_TEXTURE_EXTERNAL_WL:
num_planes = 1;
gs->target = GL_TEXTURE_EXTERNAL_OES;
gs->shader = &gr->texture_shader_egl_external;
break;
case EGL_TEXTURE_Y_UV_WL:
num_planes = 2;
gs->shader = &gr->texture_shader_y_uv;
break;
case EGL_TEXTURE_Y_U_V_WL:
num_planes = 3;
gs->shader = &gr->texture_shader_y_u_v;
break;
case EGL_TEXTURE_Y_XUXV_WL:
num_planes = 2;
gs->shader = &gr->texture_shader_y_xuxv;
break;
}
ensure_textures(gs, num_planes);
for (i = 0; i < num_planes; i++) {
attribs[0] = EGL_WAYLAND_PLANE_WL;
attribs[1] = i;
attribs[2] = EGL_NONE;
gs->images[i] = gr->create_image(gr->egl_display,
NULL,
EGL_WAYLAND_BUFFER_WL,
buffer->legacy_buffer,
attribs);
if (!gs->images[i]) {
weston_log("failed to create img for plane %d\n", i);
continue;
}
gs->num_images++;
glActiveTexture(GL_TEXTURE0 + i);
glBindTexture(gs->target, gs->textures[i]);
gr->image_target_texture_2d(gs->target,
gs->images[i]);
}
gs->pitch = buffer->width;
gs->height = buffer->height;
gs->buffer_type = BUFFER_TYPE_EGL;
}
static void
gl_renderer_attach(struct weston_surface *es, struct weston_buffer *buffer)
{
@@ -1207,8 +1317,8 @@ gl_renderer_attach(struct weston_surface *es, struct weston_buffer *buffer)
struct gl_renderer *gr = get_renderer(ec);
struct gl_surface_state *gs = get_surface_state(es);
struct wl_shm_buffer *shm_buffer;
EGLint attribs[3], format;
int i, num_planes;
EGLint format;
int i;
weston_buffer_reference(&gs->buffer_ref, buffer);
@@ -1225,99 +1335,14 @@ gl_renderer_attach(struct weston_surface *es, struct weston_buffer *buffer)
}
shm_buffer = wl_shm_buffer_get(buffer->resource);
if (shm_buffer) {
buffer->shm_buffer = shm_buffer;
buffer->width = wl_shm_buffer_get_width(shm_buffer);
buffer->height = wl_shm_buffer_get_height(shm_buffer);
/* Only allocate a texture if it doesn't match existing one.
* If a switch from DRM allocated buffer to a SHM buffer is
* happening, we need to allocate a new texture buffer. */
if (wl_shm_buffer_get_stride(shm_buffer) / 4 != gs->pitch ||
buffer->height != gs->height ||
gs->buffer_type != BUFFER_TYPE_SHM) {
gs->pitch = wl_shm_buffer_get_stride(shm_buffer) / 4;
gs->height = buffer->height;
gs->target = GL_TEXTURE_2D;
gs->buffer_type = BUFFER_TYPE_SHM;
gs->needs_full_upload = 1;
ensure_textures(gs, 1);
glBindTexture(GL_TEXTURE_2D, gs->textures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
gs->pitch, buffer->height, 0,
GL_BGRA_EXT, GL_UNSIGNED_BYTE, NULL);
}
if (wl_shm_buffer_get_format(shm_buffer) == WL_SHM_FORMAT_XRGB8888)
gs->shader = &gr->texture_shader_rgbx;
else
gs->shader = &gr->texture_shader_rgba;
} else if (gr->query_buffer(gr->egl_display,
(struct wl_buffer *)buffer->resource,
EGL_TEXTURE_FORMAT, &format)) {
buffer->legacy_buffer = (struct wl_buffer *)buffer->resource;
gr->query_buffer(gr->egl_display, buffer->legacy_buffer,
EGL_WIDTH, &buffer->width);
gr->query_buffer(gr->egl_display, buffer->legacy_buffer,
EGL_HEIGHT, &buffer->height);
for (i = 0; i < gs->num_images; i++)
gr->destroy_image(gr->egl_display, gs->images[i]);
gs->num_images = 0;
gs->target = GL_TEXTURE_2D;
switch (format) {
case EGL_TEXTURE_RGB:
case EGL_TEXTURE_RGBA:
default:
num_planes = 1;
gs->shader = &gr->texture_shader_rgba;
break;
case EGL_TEXTURE_EXTERNAL_WL:
num_planes = 1;
gs->target = GL_TEXTURE_EXTERNAL_OES;
gs->shader = &gr->texture_shader_egl_external;
break;
case EGL_TEXTURE_Y_UV_WL:
num_planes = 2;
gs->shader = &gr->texture_shader_y_uv;
break;
case EGL_TEXTURE_Y_U_V_WL:
num_planes = 3;
gs->shader = &gr->texture_shader_y_u_v;
break;
case EGL_TEXTURE_Y_XUXV_WL:
num_planes = 2;
gs->shader = &gr->texture_shader_y_xuxv;
break;
}
ensure_textures(gs, num_planes);
for (i = 0; i < num_planes; i++) {
attribs[0] = EGL_WAYLAND_PLANE_WL;
attribs[1] = i;
attribs[2] = EGL_NONE;
gs->images[i] = gr->create_image(gr->egl_display,
NULL,
EGL_WAYLAND_BUFFER_WL,
buffer->legacy_buffer,
attribs);
if (!gs->images[i]) {
weston_log("failed to create img for plane %d\n", i);
continue;
}
gs->num_images++;
glActiveTexture(GL_TEXTURE0 + i);
glBindTexture(gs->target, gs->textures[i]);
gr->image_target_texture_2d(gs->target,
gs->images[i]);
}
gs->pitch = buffer->width;
gs->height = buffer->height;
gs->buffer_type = BUFFER_TYPE_EGL;
} else {
if (shm_buffer)
gl_renderer_attach_shm(es, buffer, shm_buffer);
else if (gr->query_buffer(gr->egl_display,
(struct wl_buffer *)buffer->resource,
EGL_TEXTURE_FORMAT, &format))
gl_renderer_attach_egl(es, buffer, format);
else {
weston_log("unhandled buffer type!\n");
weston_buffer_reference(&gs->buffer_ref, NULL);
gs->buffer_type = BUFFER_TYPE_NULL;