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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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25
client/renderers/egl_texture.c
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@@ -30,10 +30,11 @@ Place, Suite 330, Boston, MA 02111-1307 USA
struct EGL_Texture
{
GLuint texture;
size_t width, height;
bool hasPBO;
GLuint pbo[2];
int pboIndex;
size_t pboWidth, pboHeight;
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)
{
texture->pboWidth = width;
texture->pboHeight = height;
texture->width = width;
texture->height = height;
texture->pboBufferSize = bufferSize;
glBindTexture(GL_TEXTURE_2D, texture->texture);
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);
if (!texture->hasPBO)
{
glGenBuffers(2, texture->pbo);
texture->hasPBO = true;
}
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);
}
texture->hasPBO = true;
return true;
}
bool egl_texture_is_streaming(EGL_Texture * texture)
{
return texture->hasPBO;
}
bool egl_texture_stream_buffer(EGL_Texture * texture, const uint8_t * buffer, size_t bufferSize)
bool egl_texture_stream_buffer(EGL_Texture * texture, const uint8_t * buffer)
{
if (++texture->pboIndex == 2)
texture->pboIndex = 0;
glBindTexture(GL_TEXTURE_2D, texture->texture);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, texture->pbo[texture->pboIndex]);
glBufferData(GL_PIXEL_UNPACK_BUFFER, bufferSize, 0, GL_DYNAMIC_DRAW);
glBufferSubData(GL_PIXEL_UNPACK_BUFFER, 0, bufferSize, buffer);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, texture->pboWidth, texture->pboHeight, GL_RGBA, GL_UNSIGNED_BYTE, 0);
glBufferData(GL_PIXEL_UNPACK_BUFFER, texture->pboBufferSize, 0, GL_DYNAMIC_DRAW);
glBufferSubData(GL_PIXEL_UNPACK_BUFFER, 0, texture->pboBufferSize, buffer);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, texture->width, texture->height, GL_RGBA, GL_UNSIGNED_BYTE, 0);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
glBindTexture(GL_TEXTURE_2D, 0);