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Diffstat (limited to 'engines/sludge/zbuffer.cpp')
-rw-r--r--engines/sludge/zbuffer.cpp227
1 files changed, 117 insertions, 110 deletions
diff --git a/engines/sludge/zbuffer.cpp b/engines/sludge/zbuffer.cpp
index d81fde6dd5..865a62e6a2 100644
--- a/engines/sludge/zbuffer.cpp
+++ b/engines/sludge/zbuffer.cpp
@@ -75,133 +75,140 @@ bool setZBuffer(int y) {
setResourceForFatal(y);
zBuffer.originalNum = y;
- if (! openFileFromNum(y)) return false;
- if (fgetc(bigDataFile) != 'S') return fatal("Not a Z-buffer file");
- if (fgetc(bigDataFile) != 'z') return fatal("Not a Z-buffer file");
- if (fgetc(bigDataFile) != 'b') return fatal("Not a Z-buffer file");
-
- switch (fgetc(bigDataFile)) {
- case 0:
- zBuffer.width = 640;
- zBuffer.height = 480;
- break;
-
- case 1:
- zBuffer.width = bigDataFile->readUint16BE();
- zBuffer.height = bigDataFile->readUint16BE();
- break;
-
- default:
- return fatal("Extended Z-buffer format not supported in this version of the SLUDGE engine");
- }
- if (zBuffer.width != sceneWidth || zBuffer.height != sceneHeight) {
- char tmp[256];
- sprintf(tmp, "Z-w: %d Z-h:%d w: %d, h:%d", zBuffer.width, zBuffer.height, sceneWidth, sceneHeight);
- return fatal("Z-buffer width and height don't match scene width and height", tmp);
- }
+ if (!openFileFromNum(y))
+ return false;
+ if (bigDataFile->readByte() != 'S')
+ return fatal("Not a Z-buffer file");
+ if (bigDataFile->readByte() != 'z')
+ return fatal("Not a Z-buffer file");
+ if (bigDataFile->readByte() != 'b')
+ return fatal("Not a Z-buffer file");
+
+ switch (bigDataFile->readByte()) {
+ case 0:
+ zBuffer.width = 640;
+ zBuffer.height = 480;
+ break;
+
+ case 1:
+ zBuffer.width = bigDataFile->readUint16BE();
+ zBuffer.height = bigDataFile->readUint16BE();
+ break;
+
+ default:
+ return fatal("Extended Z-buffer format not supported in this version of the SLUDGE engine");
+ }
+ if (zBuffer.width != sceneWidth || zBuffer.height != sceneHeight) {
+ char tmp[256];
+ sprintf(tmp, "Z-w: %d Z-h:%d w: %d, h:%d", zBuffer.width, zBuffer.height, sceneWidth, sceneHeight);
+ return fatal("Z-buffer width and height don't match scene width and height", tmp);
+ }
- zBuffer.numPanels = fgetc(bigDataFile);
- for (y = 0; y < zBuffer.numPanels; y ++) {
- yPalette[y] = bigDataFile->readUint16BE();
- }
- sortZPal(yPalette, sorted, zBuffer.numPanels);
- for (y = 0; y < zBuffer.numPanels; y ++) {
- zBuffer.panel[y] = yPalette[sorted[y]];
- sortback[sorted[y]] = y;
- }
+ zBuffer.numPanels = bigDataFile->readByte();
+ for (y = 0; y < zBuffer.numPanels; y++) {
+ yPalette[y] = bigDataFile->readUint16BE();
+ }
+ sortZPal(yPalette, sorted, zBuffer.numPanels);
+ for (y = 0; y < zBuffer.numPanels; y++) {
+ zBuffer.panel[y] = yPalette[sorted[y]];
+ sortback[sorted[y]] = y;
+ }
- int picWidth = sceneWidth;
- int picHeight = sceneHeight;
- if (! NPOT_textures) {
- picWidth = getNextPOT(picWidth);
- picHeight = getNextPOT(picHeight);
- }
- zBuffer.tex = new GLubyte [picHeight * picWidth];
- if (! checkNew(zBuffer.tex)) return false;
-
- for (y = 0; y < sceneHeight; y ++) {
- for (x = 0; x < sceneWidth; x ++) {
- if (stillToGo == 0) {
- n = fgetc(bigDataFile);
- stillToGo = n >> 4;
- if (stillToGo == 15) stillToGo = bigDataFile->readUint16BE() + 16l;
- else stillToGo ++;
- n &= 15;
+ int picWidth = sceneWidth;
+ int picHeight = sceneHeight;
+ if (!NPOT_textures) {
+ picWidth = getNextPOT(picWidth);
+ picHeight = getNextPOT(picHeight);
+ }
+ zBuffer.tex = new GLubyte[picHeight * picWidth];
+ if (!checkNew(zBuffer.tex))
+ return false;
+
+ for (y = 0; y < sceneHeight; y++) {
+ for (x = 0; x < sceneWidth; x++) {
+ if (stillToGo == 0) {
+ n = bigDataFile->readByte();
+ stillToGo = n >> 4;
+ if (stillToGo == 15)
+ stillToGo = bigDataFile->readUint16BE() + 16l;
+ else
+ stillToGo++;
+ n &= 15;
+ }
+ zBuffer.tex[y * picWidth + x] = sortback[n] * 16;
+ stillToGo--;
}
- zBuffer.tex[y * picWidth + x] = sortback[n] * 16;
- stillToGo --;
}
- }
- finishAccess();
+ finishAccess();
#endif
- setResourceForFatal(-1);
+ setResourceForFatal(-1);
#if 0
- if (! zBuffer.texName) glGenTextures(1, &zBuffer.texName);
- glBindTexture(GL_TEXTURE_2D, zBuffer.texName);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-
- texImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, picWidth, picHeight, 0, GL_ALPHA, GL_UNSIGNED_BYTE, zBuffer.tex, zBuffer.texName);
+ if (! zBuffer.texName) glGenTextures(1, &zBuffer.texName);
+ glBindTexture(GL_TEXTURE_2D, zBuffer.texName);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+
+ texImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, picWidth, picHeight, 0, GL_ALPHA, GL_UNSIGNED_BYTE, zBuffer.tex, zBuffer.texName);
#endif
- return true;
-}
+ return true;
+ }
-void drawZBuffer(int x, int y, bool upsidedown) {
- int i;
+ void drawZBuffer(int x, int y, bool upsidedown) {
+ int i;
#if 0
- if (! zBuffer.tex) return;
+ if (! zBuffer.tex) return;
- glEnable(GL_DEPTH_TEST);
- glEnable(GL_BLEND);
- glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
- glDepthMask(GL_TRUE);
+ glEnable(GL_DEPTH_TEST);
+ glEnable(GL_BLEND);
+ glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
+ glDepthMask(GL_TRUE);
- glUseProgram(shader.texture);
+ glUseProgram(shader.texture);
- setPMVMatrix(shader.texture);
+ setPMVMatrix(shader.texture);
- //glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
- glBindTexture(GL_TEXTURE_2D, zBuffer.texName);
+ //glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+ glBindTexture(GL_TEXTURE_2D, zBuffer.texName);
- setPrimaryColor(1.0, 1.0, 1.0, 1.0);
+ setPrimaryColor(1.0, 1.0, 1.0, 1.0);
- for (i = 1; i < zBuffer.numPanels; i++) {
- GLfloat z = 1.0 - (double) i * (1.0 / 128.0);
+ for (i = 1; i < zBuffer.numPanels; i++) {
+ GLfloat z = 1.0 - (double) i * (1.0 / 128.0);
- GLfloat vy1 = -y, vy2 = zBuffer.height - y;
- if (upsidedown) {
- vy1 += zBuffer.height;
- vy2 -= zBuffer.height;
- }
+ GLfloat vy1 = -y, vy2 = zBuffer.height - y;
+ if (upsidedown) {
+ vy1 += zBuffer.height;
+ vy2 -= zBuffer.height;
+ }
- const GLfloat vertices[] = {
- (GLfloat) - x, vy1, z,
- (GLfloat)zBuffer.width - x, vy1, z,
- (GLfloat) - x, vy2, z,
- (GLfloat)zBuffer.width - x, vy2, z
- };
-
- const GLfloat texCoords[] = {
- 0.0f, 0.0f,
- backdropTexW, 0.0f,
- 0.0f, backdropTexH,
- backdropTexW, backdropTexH
- };
-
- glUniform1i(glGetUniformLocation(shader.texture, "zBuffer"), 1);
- glUniform1f(glGetUniformLocation(shader.texture, "zBufferLayer"), i);
-
- drawQuad(shader.texture, vertices, 1, texCoords);
- glUniform1i(glGetUniformLocation(shader.texture, "zBuffer"), 0);
- }
+ const GLfloat vertices[] = {
+ (GLfloat) - x, vy1, z,
+ (GLfloat)zBuffer.width - x, vy1, z,
+ (GLfloat) - x, vy2, z,
+ (GLfloat)zBuffer.width - x, vy2, z
+ };
+
+ const GLfloat texCoords[] = {
+ 0.0f, 0.0f,
+ backdropTexW, 0.0f,
+ 0.0f, backdropTexH,
+ backdropTexW, backdropTexH
+ };
+
+ glUniform1i(glGetUniformLocation(shader.texture, "zBuffer"), 1);
+ glUniform1f(glGetUniformLocation(shader.texture, "zBufferLayer"), i);
+
+ drawQuad(shader.texture, vertices, 1, texCoords);
+ glUniform1i(glGetUniformLocation(shader.texture, "zBuffer"), 0);
+ }
- glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
- glDepthMask(GL_FALSE);
- glDisable(GL_BLEND);
- glUseProgram(0);
+ glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
+ glDepthMask(GL_FALSE);
+ glDisable(GL_BLEND);
+ glUseProgram(0);
#endif
-}
+ }
-} // End of namespace Sludge
+ } // End of namespace Sludge
generated by cgit v1.2.3 (git 2.25.1) at 2025-02-20 04:58:15 +0000