void GrGpuGLFixed::resetContext() {
INHERITED::resetContext();
GR_GL(Disable(GR_GL_TEXTURE_2D));
for (int s = 0; s < kNumStages; ++s) {
setTextureUnit(s);
GR_GL(EnableClientState(GR_GL_VERTEX_ARRAY));
GR_GL(TexEnvi(GR_GL_TEXTURE_ENV, GR_GL_TEXTURE_ENV_MODE, GR_GL_COMBINE));
GR_GL(TexEnvi(GR_GL_TEXTURE_ENV, GR_GL_COMBINE_RGB, GR_GL_MODULATE));
GR_GL(TexEnvi(GR_GL_TEXTURE_ENV, GR_GL_SRC0_RGB, GR_GL_TEXTURE0+s));
GR_GL(TexEnvi(GR_GL_TEXTURE_ENV, GR_GL_SRC1_RGB, GR_GL_PREVIOUS));
GR_GL(TexEnvi(GR_GL_TEXTURE_ENV, GR_GL_OPERAND1_RGB, GR_GL_SRC_COLOR));
GR_GL(TexEnvi(GR_GL_TEXTURE_ENV, GR_GL_COMBINE_ALPHA, GR_GL_MODULATE));
GR_GL(TexEnvi(GR_GL_TEXTURE_ENV, GR_GL_SRC0_ALPHA, GR_GL_TEXTURE0+s));
GR_GL(TexEnvi(GR_GL_TEXTURE_ENV, GR_GL_OPERAND0_ALPHA, GR_GL_SRC_ALPHA));
GR_GL(TexEnvi(GR_GL_TEXTURE_ENV, GR_GL_SRC1_ALPHA, GR_GL_PREVIOUS));
GR_GL(TexEnvi(GR_GL_TEXTURE_ENV, GR_GL_OPERAND1_ALPHA, GR_GL_SRC_ALPHA));
// color oprand0 changes between GL_SRC_COLR and GL_SRC_ALPHA depending
// upon whether we have a (premultiplied) RGBA texture or just an ALPHA
// texture, e.g.:
//glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB, GL_SRC_COLOR);
fHWRGBOperand0[s] = (TextureEnvRGBOperands) -1;
}
fHWGeometryState.fVertexLayout = 0;
fHWGeometryState.fVertexOffset = ~0;
GR_GL(EnableClientState(GR_GL_VERTEX_ARRAY));
GR_GL(DisableClientState(GR_GL_TEXTURE_COORD_ARRAY));
GR_GL(ShadeModel(GR_GL_FLAT));
GR_GL(DisableClientState(GR_GL_COLOR_ARRAY));
GR_GL(PointSize(1.f));
GrGLClearErr();
fTextVerts = false;
fBaseVertex = 0xffffffff;
}
bool GrGpuGLFixed::flushGraphicsState(GrPrimitiveType type) {
bool usingTextures[kNumStages];
for (int s = 0; s < kNumStages; ++s) {
usingTextures[s] = VertexUsesStage(s, fGeometrySrc.fVertexLayout);
if (usingTextures[s] && fCurrDrawState.fSamplerStates[s].isGradient()) {
unimpl("Fixed pipe doesn't support radial/sweep gradients");
return false;
}
}
if (GR_GL_SUPPORT_ES1) {
if (BlendCoefReferencesConstant(fCurrDrawState.fSrcBlend) ||
BlendCoefReferencesConstant(fCurrDrawState.fDstBlend)) {
unimpl("ES1 doesn't support blend constant");
return false;
}
}
if (!flushGLStateCommon(type)) {
return false;
}
if (fDirtyFlags.fRenderTargetChanged) {
flushProjectionMatrix();
}
for (int s = 0; s < kNumStages; ++s) {
bool wasUsingTexture = VertexUsesStage(s, fHWGeometryState.fVertexLayout);
if (usingTextures[s] != wasUsingTexture) {
setTextureUnit(s);
if (usingTextures[s]) {
GR_GL(Enable(GR_GL_TEXTURE_2D));
} else {
GR_GL(Disable(GR_GL_TEXTURE_2D));
}
}
}
uint32_t vertColor = (fGeometrySrc.fVertexLayout & kColor_VertexLayoutBit);
uint32_t prevVertColor = (fHWGeometryState.fVertexLayout &
kColor_VertexLayoutBit);
if (vertColor != prevVertColor) {
if (vertColor) {
GR_GL(ShadeModel(GR_GL_SMOOTH));
// invalidate the immediate mode color
fHWDrawState.fColor = GrColor_ILLEGAL;
} else {
GR_GL(ShadeModel(GR_GL_FLAT));
}
}
if (!vertColor && fHWDrawState.fColor != fCurrDrawState.fColor) {
GR_GL(Color4ub(GrColorUnpackR(fCurrDrawState.fColor),
GrColorUnpackG(fCurrDrawState.fColor),
GrColorUnpackB(fCurrDrawState.fColor),
GrColorUnpackA(fCurrDrawState.fColor)));
fHWDrawState.fColor = fCurrDrawState.fColor;
}
// set texture environment, decide whether we are modulating by RGB or A.
for (int s = 0; s < kNumStages; ++s) {
if (usingTextures[s]) {
GrGLTexture* texture = (GrGLTexture*)fCurrDrawState.fTextures[s];
if (NULL != texture) {
TextureEnvRGBOperands nextRGBOperand0 =
(GrPixelConfigIsAlphaOnly(texture->config())) ?
kAlpha_TextureEnvRGBOperand :
kColor_TextureEnvRGBOperand;
if (fHWRGBOperand0[s] != nextRGBOperand0) {
setTextureUnit(s);
GR_GL(TexEnvi(GR_GL_TEXTURE_ENV,
GR_GL_OPERAND0_RGB,
(nextRGBOperand0==kAlpha_TextureEnvRGBOperand) ?
GR_GL_SRC_ALPHA :
GR_GL_SRC_COLOR));
fHWRGBOperand0[s] = nextRGBOperand0;
}
if (((1 << s) & fDirtyFlags.fTextureChangedMask) ||
(fHWDrawState.fSamplerStates[s].getMatrix() !=
getSamplerMatrix(s))) {
GrMatrix texMat = getSamplerMatrix(s);
AdjustTextureMatrix(texture,
GrSamplerState::kNormal_SampleMode,
&texMat);
GrGpuMatrix glm;
glm.set(texMat);
setTextureUnit(s);
GR_GL(MatrixMode(GR_GL_TEXTURE));
GR_GL(LoadMatrixf(glm.fMat));
recordHWSamplerMatrix(s, getSamplerMatrix(s));
}
} else {
GrAssert(!"Rendering with texture vert flag set but no bound texture");
return false;
}
}
}
if (fHWDrawState.fViewMatrix != fCurrDrawState.fViewMatrix) {
GrGpuMatrix glm;
glm.set(fCurrDrawState.fViewMatrix);
GR_GL(MatrixMode(GR_GL_MODELVIEW));
GR_GL(LoadMatrixf(glm.fMat));
fHWDrawState.fViewMatrix =
fCurrDrawState.fViewMatrix;
}
resetDirtyFlags();
return true;
}
/**
* \brief Initialize a (new or reused) OpenGL context.
* set global gl-related variables to their default values
*/
static int initGl(uint32_t d_width, uint32_t d_height) {
int scale_type = mipmap_gen ? GL_LINEAR_MIPMAP_NEAREST : GL_LINEAR;
autodetectGlExtensions();
gl_target = use_rectangle == 1 ? GL_TEXTURE_RECTANGLE : GL_TEXTURE_2D;
yuvconvtype = use_yuv | lscale << YUV_LUM_SCALER_SHIFT | cscale << YUV_CHROM_SCALER_SHIFT;
texSize(image_width, image_height, &texture_width, &texture_height);
Disable(GL_BLEND);
Disable(GL_DEPTH_TEST);
DepthMask(GL_FALSE);
Disable(GL_CULL_FACE);
Enable(gl_target);
DrawBuffer(vo_doublebuffering?GL_BACK:GL_FRONT);
TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
mp_msg(MSGT_VO, MSGL_V, "[gl] Creating %dx%d texture...\n",
texture_width, texture_height);
if (is_yuv) {
int i;
int xs, ys;
mp_get_chroma_shift(image_format, &xs, &ys);
GenTextures(21, default_texs);
default_texs[21] = 0;
for (i = 0; i < 7; i++) {
ActiveTexture(GL_TEXTURE1 + i);
BindTexture(GL_TEXTURE_2D, default_texs[i]);
BindTexture(GL_TEXTURE_RECTANGLE, default_texs[i + 7]);
BindTexture(GL_TEXTURE_3D, default_texs[i + 14]);
}
ActiveTexture(GL_TEXTURE1);
glCreateClearTex(gl_target, gl_texfmt, gl_format, gl_type, scale_type,
texture_width >> xs, texture_height >> ys, 128);
if (mipmap_gen)
TexParameteri(gl_target, GL_GENERATE_MIPMAP, GL_TRUE);
ActiveTexture(GL_TEXTURE2);
glCreateClearTex(gl_target, gl_texfmt, gl_format, gl_type, scale_type,
texture_width >> xs, texture_height >> ys, 128);
if (mipmap_gen)
TexParameteri(gl_target, GL_GENERATE_MIPMAP, GL_TRUE);
ActiveTexture(GL_TEXTURE0);
BindTexture(gl_target, 0);
}
if (is_yuv || custom_prog)
{
if ((MASK_NOT_COMBINERS & (1 << use_yuv)) || custom_prog) {
if (!GenPrograms || !BindProgram) {
mp_msg(MSGT_VO, MSGL_ERR, "[gl] fragment program functions missing!\n");
} else {
GenPrograms(1, &fragprog);
BindProgram(GL_FRAGMENT_PROGRAM, fragprog);
}
}
update_yuvconv();
}
glCreateClearTex(gl_target, gl_texfmt, gl_format, gl_type, scale_type,
texture_width, texture_height, 0);
if (mipmap_gen)
TexParameteri(gl_target, GL_GENERATE_MIPMAP, GL_TRUE);
resize(d_width, d_height);
ClearColor( 0.0f,0.0f,0.0f,0.0f );
Clear( GL_COLOR_BUFFER_BIT );
if (SwapInterval && swap_interval >= 0)
SwapInterval(swap_interval);
return 1;
}
