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Aegisub
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Get the video display closer to working with W7's emulated OpenGL. It can now display video, but there are visible seams between the textures. 

Originally committed to SVN as r3711.
This commit is contained in:
Thomas Goyne 2009-10-13 22:19:31 +00:00
parent 59cf4b656a
commit 9ff8f42d7f
1 changed files with 16 additions and 12 deletions
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28
aegisub/src/video_out_gl.cpp
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@ -116,10 +116,6 @@ void VideoOutGL::InitTextures(int width, int height, GLenum format, int bpp) {
if (width == frameWidth && height == frameHeight && format == frameFormat) return;
wxLogDebug("VideoOutGL::InitTextures: Video size: %dx%d\n", width, height);
frameWidth = width;
frameHeight = height;
frameFormat = format;
// If nessesary, detect what the user's OpenGL supports
if (maxTextureSize == 0) {
// Test for supported internalformats
@ -161,8 +157,8 @@ void VideoOutGL::InitTextures(int width, int height, GLenum format, int bpp) {
int sourceH = maxTextureSize;
// If the last row doesn't need a full texture, shrink it to the smallest one possible
if (i == textureRows - 1 && frameHeight % maxTextureSize > 0) {
sourceH = frameHeight % maxTextureSize;
if (i == textureRows - 1 && height % maxTextureSize > 0) {
sourceH = height % maxTextureSize;
}
for (int j = 0; j < textureCols; j++) {
TextureInfo& ti = textureList[i * textureCols + j];
@ -174,8 +170,8 @@ void VideoOutGL::InitTextures(int width, int height, GLenum format, int bpp) {
ti.sourceW = maxTextureSize;
// If the last column doesn't need a full texture, shrink it to the smallest one possible
if (j == textureCols - 1 && frameWidth % maxTextureSize > 0) {
ti.sourceW = frameWidth % maxTextureSize;
if (j == textureCols - 1 && width % maxTextureSize > 0) {
ti.sourceW = width % maxTextureSize;
}
int w = SmallestPowerOf2(ti.sourceW);
@ -186,11 +182,11 @@ void VideoOutGL::InitTextures(int width, int height, GLenum format, int bpp) {
ti.texH = float(ti.sourceH) / h;
// destW/H is the percent of the output which this texture covers
ti.destW = float(ti.sourceW) / frameWidth;
ti.destH = float(ti.sourceH) / frameHeight;
ti.destW = float(ti.sourceW) / width;
ti.destH = float(ti.sourceH) / height;
ti.textureID = textureIdList[i * textureCols + j];
ti.dataOffset = sourceY * frameWidth * bpp + sourceX * bpp;
ti.dataOffset = sourceY * width * bpp + sourceX * bpp;
// Actually create the texture and set the scaling mode
glBindTexture(GL_TEXTURE_2D, ti.textureID);
@ -202,17 +198,25 @@ void VideoOutGL::InitTextures(int width, int height, GLenum format, int bpp) {
if (GLenum err = glGetError()) throw VideoOutOpenGLException(L"glTexParameteri(GL_TEXTURE_MIN_FILTER)", err);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
if (GLenum err = glGetError()) throw VideoOutOpenGLException(L"glTexParameteri(GL_TEXTURE_MAG_FILTER)", err);
// GL_CLAMP_TO_EDGE was added in OpenGL 1.2, and W7's emulation only supports 1.1
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
if (glGetError()) glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
if (GLenum err = glGetError()) throw VideoOutOpenGLException(L"glTexParameteri(GL_TEXTURE_WRAP_S)", err);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
if (glGetError()) glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
if (GLenum err = glGetError()) throw VideoOutOpenGLException(L"glTexParameteri(GL_TEXTURE_WRAP_T)", err);
destX += ti.destW;
sourceX += ti.sourceW;
}
destY += float(sourceH) / frameHeight;
destY += float(sourceH) / height;
sourceY += sourceH;
}
frameWidth = width;
frameHeight = height;
frameFormat = format;
}
void VideoOutGL::DisplayFrame(AegiVideoFrame frame, int sw, int sh) {