wined3d: Implement YUV emulation with GL_ARB_fragment_program.
This commit is contained in:
Stefan Dösinger
Alexandre Julliard
parent
bfe7067973
commit
1f4cf3513d
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@ -2982,3 +2982,296 @@ const struct fragment_pipeline arbfp_fragment_pipeline = {
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shader_arb_conv_supported,
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arbfp_fragmentstate_template
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};
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#define GLINFO_LOCATION device->adapter->gl_info
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struct arbfp_blit_priv {
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GLenum yuy2_rect_shader, yuy2_2d_shader;
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GLenum uyvy_rect_shader, uyvy_2d_shader;
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};
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static HRESULT arbfp_blit_alloc(IWineD3DDevice *iface) {
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IWineD3DDeviceImpl *device = (IWineD3DDeviceImpl *) iface;
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device->blit_priv = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(struct arbfp_blit_priv));
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if(!device->blit_priv) {
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ERR("Out of memory\n");
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return E_OUTOFMEMORY;
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}
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return WINED3D_OK;
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}
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static void arbfp_blit_free(IWineD3DDevice *iface) {
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IWineD3DDeviceImpl *device = (IWineD3DDeviceImpl *) iface;
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struct arbfp_blit_priv *priv = (struct arbfp_blit_priv *) device->blit_priv;
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ENTER_GL();
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GL_EXTCALL(glDeleteProgramsARB(1, &priv->yuy2_rect_shader));
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GL_EXTCALL(glDeleteProgramsARB(1, &priv->yuy2_2d_shader));
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GL_EXTCALL(glDeleteProgramsARB(1, &priv->uyvy_rect_shader));
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GL_EXTCALL(glDeleteProgramsARB(1, &priv->uyvy_2d_shader));
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checkGLcall("Delete yuv programs\n");
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LEAVE_GL();
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}
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GLenum gen_yuv_shader(IWineD3DDeviceImpl *device, WINED3DFORMAT fmt, GLenum textype) {
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GLenum shader;
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SHADER_BUFFER buffer;
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const char *tex, *texinstr;
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char chroma, luminance;
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struct arbfp_blit_priv *priv = (struct arbfp_blit_priv *) device->blit_priv;
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/* Shader header */
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buffer.bsize = 0;
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buffer.lineNo = 0;
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buffer.newline = TRUE;
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buffer.buffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, SHADER_PGMSIZE);
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switch(textype) {
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case GL_TEXTURE_2D: tex = "2D"; texinstr = "TXP"; break;
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case GL_TEXTURE_RECTANGLE_ARB: tex = "RECT"; texinstr = "TEX"; break;
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default:
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/* This is more tricky than just replacing the texture type - we have to navigate
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* properly in the texture to find the correct chroma values
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*/
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FIXME("Implement yuv correction for non-2d, non-rect textures\n");
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return 0;
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}
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if(fmt == WINED3DFMT_UYVY) {
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chroma = 'r';
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luminance = 'a';
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} else {
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chroma = 'a';
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luminance = 'r';
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}
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GL_EXTCALL(glGenProgramsARB(1, &shader));
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checkGLcall("GL_EXTCALL(glGenProgramsARB(1, &shader))");
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GL_EXTCALL(glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, shader));
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checkGLcall("glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, shader)");
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if(!shader) return 0;
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/* The YUY2 and UYVY formats contain two pixels packed into a 32 bit macropixel,
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* giving effectively 16 bit per pixel. The color consists of a luminance(Y) and
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* two chroma(U and V) values. Each macropixel has two luminance values, one for
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* each single pixel it contains, and one U and one V value shared between both
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* pixels.
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*
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* The data is loaded into an A8L8 texture. With YUY2, the luminance component
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* contains the luminance and alpha the chroma. With UYVY it is vice versa. Thus
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* take the format into account when generating the read swizzles
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*
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* Reading the Y value is streightforward - just sample the texture. The hardware
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* takes care of filtering in the horizontal and vertical direction.
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*
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* Reading the U and V values is harder. We have to avoid filtering horizontally,
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* because that would mix the U and V values of one pixel or two adjacent pixels.
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* Thus floor the texture coordinate and add 0.5 to get an unfiltered read,
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* regardless of the filtering setting. Vertical filtering works automatically
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* though - the U and V values of two rows are mixed nicely.
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*
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* Appart of avoiding filtering issues, the code has to know which value it just
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* read, and where it can find the other one. To determine this, it checks if
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* it sampled an even or odd pixel, and shifts the 2nd read accordingly.
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*
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* Handling horizontal filtering of U and V values requires reading a 2nd pair
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* of pixels, extracting U and V and mixing them. This is not implemented yet.
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*
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* An alternative implementation idea is to load the texture as A8R8G8B8 texture,
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* with width / 2. This way one read gives all 3 values, finding U and V is easy
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* in an unfiltered situation. Finding the luminance on the other hand requires
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* finding out if it is an odd or even pixel. The real drawback of this approach
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* is filtering. This would have to be emulated completely in the shader, reading
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* up two 2 packed pixels in up to 2 rows and interpolating both horizontally and
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* vertically. Beyond that it would require adjustments to the texture handling
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* code to deal with the width scaling
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*/
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shader_addline(&buffer, "!!ARBfp1.0\n");
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shader_addline(&buffer, "TEMP luminance;\n");
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shader_addline(&buffer, "TEMP temp;\n");
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shader_addline(&buffer, "TEMP chroma;\n");
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shader_addline(&buffer, "TEMP texcrd;\n");
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shader_addline(&buffer, "TEMP texcrd2;\n");
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shader_addline(&buffer, "PARAM coef = {1.0, 0.5, 2.0, 0.0};\n");
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shader_addline(&buffer, "PARAM yuv_coef = {1.403, 0.344, 0.714, 1.770};\n");
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shader_addline(&buffer, "PARAM size = program.local[0];\n");
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/* First we have to read the chroma values. This means we need at least two pixels(no filtering),
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* or 4 pixels(with filtering). To get the unmodified chromas, we have to rid ourselves of the
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* filtering when we sample the texture.
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*
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* These are the rules for reading the chroma:
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*
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* Even pixel: Cr
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* Even pixel: U
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* Odd pixel: V
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*
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* So we have to get the sampling x position in non-normalized coordinates in integers
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*/
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if(textype != GL_TEXTURE_RECTANGLE_ARB) {
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shader_addline(&buffer, "MUL texcrd.rg, fragment.texcoord[0], size.x;\n");
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shader_addline(&buffer, "MOV texcrd.a, size.x;\n");
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} else {
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shader_addline(&buffer, "MOV texcrd, fragment.texcoord[0];\n");
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}
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/* We must not allow filtering between pixel x and x+1, this would mix U and V
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* Vertical filtering is ok. However, bear in mind that the pixel center is at
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* 0.5, so add 0.5.
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*/
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shader_addline(&buffer, "FLR texcrd.x, texcrd.x;\n");
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shader_addline(&buffer, "ADD texcrd.x, texcrd.x, coef.y;\n");
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/* Divide the x coordinate by 0.5 and get the fraction. This gives 0.25 and 0.75 for the
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* even and odd pixels respectively
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*/
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shader_addline(&buffer, "MUL texcrd2, texcrd, coef.y;\n");
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shader_addline(&buffer, "FRC texcrd2, texcrd2;\n");
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/* Sample Pixel 1 */
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shader_addline(&buffer, "%s luminance, texcrd, texture[0], %s;\n", texinstr, tex);
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/* Put the value into either of the chroma values */
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shader_addline(&buffer, "SGE temp.x, texcrd2.x, coef.y;\n");
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shader_addline(&buffer, "MUL chroma.r, luminance.%c, temp.x;\n", chroma);
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shader_addline(&buffer, "SLT temp.x, texcrd2.x, coef.y;\n");
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shader_addline(&buffer, "MUL chroma.g, luminance.%c, temp.x;\n", chroma);
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/* Sample pixel 2. If we read an even pixel(SLT above returned 1), sample
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* the pixel right to the current one. Otherwise, sample the left pixel.
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* Bias and scale the SLT result to -1;1 and add it to the texcrd.x.
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*/
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shader_addline(&buffer, "MAD temp.x, temp.x, coef.z, -coef.x;\n");
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shader_addline(&buffer, "ADD texcrd.x, texcrd, temp.x;\n");
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shader_addline(&buffer, "%s luminance, texcrd, texture[0], %s;\n", texinstr, tex);
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/* Put the value into the other chroma */
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shader_addline(&buffer, "SGE temp.x, texcrd2.x, coef.y;\n");
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shader_addline(&buffer, "MAD chroma.g, luminance.%c, temp.x, chroma.g;\n", chroma);
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shader_addline(&buffer, "SLT temp.x, texcrd2.x, coef.y;\n");
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shader_addline(&buffer, "MAD chroma.r, luminance.%c, temp.x, chroma.r;\n", chroma);
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/* TODO: If filtering is enabled, sample a 2nd pair of pixels left or right of
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* the current one and lerp the two U and V values
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*/
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/* This gives the correctly filtered luminance value */
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shader_addline(&buffer, "TEX luminance, fragment.texcoord[0], texture[0], %s;\n", tex);
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/* Calculate the final result. Formula is taken from
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* http://www.fourcc.org/fccyvrgb.php. Note that the chroma
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* ranges from -0.5 to 0.5
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*/
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shader_addline(&buffer, "SUB chroma.rg, chroma, coef.y;\n");
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shader_addline(&buffer, "MAD result.color.r, chroma.r, yuv_coef.x, luminance.%c;\n", luminance);
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shader_addline(&buffer, "MAD temp.r, -chroma.g, yuv_coef.y, luminance.%c;\n", luminance);
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shader_addline(&buffer, "MAD result.color.g, -chroma.r, yuv_coef.z, temp.r;\n");
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shader_addline(&buffer, "MAD result.color.b, chroma.g, yuv_coef.w, luminance.%c;\n", luminance);
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shader_addline(&buffer, "END\n");
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GL_EXTCALL(glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, strlen(buffer.buffer), buffer.buffer));
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if (glGetError() == GL_INVALID_OPERATION) {
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GLint pos;
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glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &pos);
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FIXME("Fragment program error at position %d: %s\n", pos,
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debugstr_a((const char *)glGetString(GL_PROGRAM_ERROR_STRING_ARB)));
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}
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if(fmt == WINED3DFMT_YUY2) {
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if(textype == GL_TEXTURE_RECTANGLE_ARB) {
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priv->yuy2_rect_shader = shader;
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} else {
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priv->yuy2_2d_shader = shader;
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}
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} else {
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if(textype == GL_TEXTURE_RECTANGLE_ARB) {
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priv->uyvy_rect_shader = shader;
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} else {
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priv->uyvy_2d_shader = shader;
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}
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}
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return shader;
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}
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static HRESULT arbfp_blit_set(IWineD3DDevice *iface, WINED3DFORMAT fmt, GLenum textype, UINT width, UINT height) {
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GLenum shader;
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IWineD3DDeviceImpl *device = (IWineD3DDeviceImpl *) iface;
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float size[4] = {width, height, 1, 1};
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struct arbfp_blit_priv *priv = (struct arbfp_blit_priv *) device->blit_priv;
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const GlPixelFormatDesc *glDesc;
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getFormatDescEntry(fmt, &GLINFO_LOCATION, &glDesc);
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if(glDesc->conversion_group != WINED3DFMT_YUY2 && glDesc->conversion_group != WINED3DFMT_UYVY) {
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/* Don't bother setting up a shader for unconverted formats */
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glEnable(textype);
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checkGLcall("glEnable(textype)");
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return WINED3D_OK;
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}
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if(glDesc->conversion_group == WINED3DFMT_YUY2) {
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if(textype == GL_TEXTURE_RECTANGLE_ARB) {
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shader = priv->yuy2_rect_shader;
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} else {
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shader = priv->yuy2_2d_shader;
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}
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} else {
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if(textype == GL_TEXTURE_RECTANGLE_ARB) {
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shader = priv->uyvy_rect_shader;
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} else {
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shader = priv->uyvy_2d_shader;
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}
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}
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if(!shader) {
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shader = gen_yuv_shader(device, glDesc->conversion_group, textype);
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}
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glEnable(GL_FRAGMENT_PROGRAM_ARB);
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checkGLcall("glEnable(GL_FRAGMENT_PROGRAM_ARB)");
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GL_EXTCALL(glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, shader));
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checkGLcall("glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, shader)");
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GL_EXTCALL(glProgramLocalParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, 0, size));
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checkGLcall("glProgramLocalParameter4fvARB");
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return WINED3D_OK;
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}
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static void arbfp_blit_unset(IWineD3DDevice *iface) {
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IWineD3DDeviceImpl *device = (IWineD3DDeviceImpl *) iface;
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glDisable(GL_FRAGMENT_PROGRAM_ARB);
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checkGLcall("glDisable(GL_FRAGMENT_PROGRAM_ARB)");
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glDisable(GL_TEXTURE_2D);
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checkGLcall("glDisable(GL_TEXTURE_2D)");
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if(GL_SUPPORT(ARB_TEXTURE_CUBE_MAP)) {
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glDisable(GL_TEXTURE_CUBE_MAP_ARB);
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checkGLcall("glDisable(GL_TEXTURE_CUBE_MAP_ARB)");
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}
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if(GL_SUPPORT(ARB_TEXTURE_RECTANGLE)) {
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glDisable(GL_TEXTURE_RECTANGLE_ARB);
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checkGLcall("glDisable(GL_TEXTURE_RECTANGLE_ARB)");
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}
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}
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static BOOL arbfp_blit_conv_supported(WINED3DFORMAT fmt) {
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TRACE("Checking blit format support for format %s:", debug_d3dformat(fmt));
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switch(fmt) {
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case WINED3DFMT_YUY2:
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case WINED3DFMT_UYVY:
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TRACE("[OK]\n");
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return TRUE;
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default:
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TRACE("[FAILED]\n");
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return FALSE;
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}
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}
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const struct blit_shader arbfp_blit = {
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arbfp_blit_alloc,
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arbfp_blit_free,
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arbfp_blit_set,
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arbfp_blit_unset,
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arbfp_blit_conv_supported
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};
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#undef GLINFO_LOCATION
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@ -2953,8 +2953,11 @@ static const struct blit_shader *select_blit_implementation(UINT Adapter, WINED3
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int ps_selected_mode;
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select_shader_mode(&GLINFO_LOCATION, DeviceType, &ps_selected_mode, &vs_selected_mode);
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if((ps_selected_mode == SHADER_ARB || ps_selected_mode == SHADER_GLSL) && GL_SUPPORT(ARB_FRAGMENT_PROGRAM)) {
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return &arbfp_blit;
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} else {
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return &ffp_blit;
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}
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}
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/* Note: d3d8 passes in a pointer to a D3DCAPS8 structure, which is a true
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@ -587,6 +587,7 @@ struct blit_shader {
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};
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extern const struct blit_shader ffp_blit;
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extern const struct blit_shader arbfp_blit;
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/* The new context manager that should deal with onscreen and offscreen rendering */
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struct WineD3DContext {
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