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[egl] cleanup texture API

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This commit is contained in:
Geoffrey McRae 2018-09-23 15:56:47 +10:00
parent 00658f3d64
commit 884ad6557b
3 changed files with 18 additions and 22 deletions
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12
client/renderers/egl.c
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@ -282,19 +282,17 @@ bool egl_render(void * opaque, SDL_Window * window)
if (this->sourceChanged) if (this->sourceChanged)
{ {
this->sourceChanged = false; this->sourceChanged = false;
egl_texture_init_streaming( if (!egl_texture_init_streaming(
this->textures.desktop, this->textures.desktop,
this->format.width, this->format.width,
this->format.height, this->format.height,
this->frameSize this->frameSize
); ))
return false;
} }
egl_texture_stream_buffer( if (!egl_texture_stream_buffer(this->textures.desktop, this->data))
this->textures.desktop, return false;
this->data,
this->frameSize
);
this->update = false; this->update = false;
} }

25
client/renderers/egl_texture.c
View File

@ -30,10 +30,11 @@ Place, Suite 330, Boston, MA 02111-1307 USA
struct EGL_Texture struct EGL_Texture
{ {
GLuint texture; GLuint texture;
size_t width, height;
bool hasPBO; bool hasPBO;
GLuint pbo[2]; GLuint pbo[2];
int pboIndex; int pboIndex;
size_t pboWidth, pboHeight;
size_t pboBufferSize; size_t pboBufferSize;
}; };
@ -68,8 +69,9 @@ void egl_texture_free(EGL_Texture ** texture)
bool egl_texture_init_streaming(EGL_Texture * texture, size_t width, size_t height, size_t bufferSize) bool egl_texture_init_streaming(EGL_Texture * texture, size_t width, size_t height, size_t bufferSize)
{ {
texture->pboWidth = width; texture->width = width;
texture->pboHeight = height; texture->height = height;
texture->pboBufferSize = bufferSize;
glBindTexture(GL_TEXTURE_2D, texture->texture); glBindTexture(GL_TEXTURE_2D, texture->texture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
@ -80,7 +82,10 @@ bool egl_texture_init_streaming(EGL_Texture * texture, size_t width, size_t heig
glBindTexture(GL_TEXTURE_2D, 0); glBindTexture(GL_TEXTURE_2D, 0);
if (!texture->hasPBO) if (!texture->hasPBO)
{
glGenBuffers(2, texture->pbo); glGenBuffers(2, texture->pbo);
texture->hasPBO = true;
}
for(int i = 0; i < 2; ++i) for(int i = 0; i < 2; ++i)
{ {
@ -94,25 +99,19 @@ bool egl_texture_init_streaming(EGL_Texture * texture, size_t width, size_t heig
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0); glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
} }
texture->hasPBO = true;
return true; return true;
} }
bool egl_texture_is_streaming(EGL_Texture * texture) bool egl_texture_stream_buffer(EGL_Texture * texture, const uint8_t * buffer)
{
return texture->hasPBO;
}
bool egl_texture_stream_buffer(EGL_Texture * texture, const uint8_t * buffer, size_t bufferSize)
{ {
if (++texture->pboIndex == 2) if (++texture->pboIndex == 2)
texture->pboIndex = 0; texture->pboIndex = 0;
glBindTexture(GL_TEXTURE_2D, texture->texture); glBindTexture(GL_TEXTURE_2D, texture->texture);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, texture->pbo[texture->pboIndex]); glBindBuffer(GL_PIXEL_UNPACK_BUFFER, texture->pbo[texture->pboIndex]);
glBufferData(GL_PIXEL_UNPACK_BUFFER, bufferSize, 0, GL_DYNAMIC_DRAW); glBufferData(GL_PIXEL_UNPACK_BUFFER, texture->pboBufferSize, 0, GL_DYNAMIC_DRAW);
glBufferSubData(GL_PIXEL_UNPACK_BUFFER, 0, bufferSize, buffer); glBufferSubData(GL_PIXEL_UNPACK_BUFFER, 0, texture->pboBufferSize, buffer);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, texture->pboWidth, texture->pboHeight, GL_RGBA, GL_UNSIGNED_BYTE, 0); glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, texture->width, texture->height, GL_RGBA, GL_UNSIGNED_BYTE, 0);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0); glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
glBindTexture(GL_TEXTURE_2D, 0); glBindTexture(GL_TEXTURE_2D, 0);

3
client/renderers/egl_texture.h
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@ -31,6 +31,5 @@ bool egl_texture_init(EGL_Texture ** tex);
void egl_texture_free(EGL_Texture ** tex); void egl_texture_free(EGL_Texture ** tex);
bool egl_texture_init_streaming(EGL_Texture * texture, size_t width, size_t height, size_t bufferSize); bool egl_texture_init_streaming(EGL_Texture * texture, size_t width, size_t height, size_t bufferSize);
bool egl_texture_is_streaming (EGL_Texture * texture); bool egl_texture_stream_buffer (EGL_Texture * texture, const uint8_t * buffer);
bool egl_texture_stream_buffer (EGL_Texture * texture, const uint8_t * buffer, size_t bufferSize);
void egl_texture_bind (EGL_Texture * texture); void egl_texture_bind (EGL_Texture * texture);