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OPENGL: Add basic game screen drawing. Changed Overlay PixelFormat to RGBA5551.

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svn-id: r51193
This commit is contained in:
Alejandro Marzini 2010-07-23 06:57:23 +00:00
parent ef880dd5da
commit bbdb87a831
4 changed files with 62 additions and 18 deletions
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19
backends/graphics/opengl/gltexture.cpp
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@ -104,6 +104,10 @@ void GLTexture::refresh() {
_refresh = true;
}
void GLTexture::refreshBuffer() {
updateBuffer(_surface.pixels, _surface.pitch, 0, 0, _surface.w, _surface.h);
}
void GLTexture::allocBuffer(GLuint w, GLuint h) {
_realWidth = w;
_realHeight = h;
@ -133,7 +137,7 @@ void GLTexture::allocBuffer(GLuint w, GLuint h) {
if (_surface.w != _textureWidth || _surface.h != _textureHeight)
_surface.create(_textureWidth, _textureHeight, _bytesPerPixel);
else if (_refresh)
updateBuffer(_surface.pixels, _surface.pitch, 0, 0, _surface.w, _surface.h);
refreshBuffer();
_refresh = false;
}
@ -147,7 +151,7 @@ void GLTexture::updateBuffer(const void *buf, int pitch, GLuint x, GLuint y, GLu
if (buf != _surface.pixels)
memcpy(_surface.getBasePtr(x, y), buf, h * pitch);
} else {
const byte* src = static_cast<const byte*>(buf);
const byte *src = static_cast<const byte *>(buf);
do {
glTexSubImage2D(GL_TEXTURE_2D, 0, x, y,
w, 1, _glFormat, _glType, src); CHECK_GL_ERROR();
@ -159,8 +163,15 @@ void GLTexture::updateBuffer(const void *buf, int pitch, GLuint x, GLuint y, GLu
}
}
void GLTexture::fillBuffer(byte x) {
memset(_surface.pixels, x, _surface.h * _surface.pitch);
void GLTexture::fillBuffer(uint32 x) {
if (_bytesPerPixel == 1)
memset(_surface.pixels, x, _surface.w * _surface.h);
else {
for (int i = 0; i < _surface.w * _surface.h; i++) {
memcpy(_surface.pixels, &x, _bytesPerPixel);
}
}
glBindTexture(GL_TEXTURE_2D, _textureName); CHECK_GL_ERROR();
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, _surface.w, _surface.h,
_glFormat, _glType, _surface.pixels); CHECK_GL_ERROR();