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glsurface.h/.cpp: change how the palette is handled and fix tinting/fading

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git-svn-id: https://svn.eduke32.com/eduke32@6932 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
pogokeen 2018-06-25 14:53:46 +00:00
parent a0faeaf8f6
commit 9e90b0633b
4 changed files with 24 additions and 32 deletions
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10
source/build/include/glsurface.h
View file

@ -9,7 +9,6 @@
#define GLSURFACE_H_
#include "compat.h"
#include "palette.h"
// Initialize the glsurface with the Software renderer's buffer resolution.
// If the Software renderer's resolution and the actual resolution don't match,
@ -21,9 +20,9 @@ bool glsurface_initialize(vec2_t inputBufferResolution);
// Destroy an existing surface.
void glsurface_destroy();
// Sets the palette at paletteID to contain the byte buffer pointed to by pPalette.
// Sets the palette to contain the RGBA byte buffer pointed to by pPalette.
// If the surface is not initialized, the function returns immediately.
void glsurface_setPalette(int32_t paletteID, void* pPalette);
void glsurface_setPalette(void* pPalette);
// Returns a pointer to the start of the surface's pixel buffer
// Returns NULL if the surface is not initialized.
@ -32,10 +31,9 @@ void* glsurface_getBuffer();
// Returns the resolution of the surface's buffer
vec2_t glsurface_getBufferResolution();
// Blit the surface's pixel buffer to the screen.
// paletteID is the id of a palette previously set with glsurface_setPalette().
// Blit the surface's pixel buffer to the screen using the palette set with glsurface_setPalette().
// Renders as soon as the data has been uploaded.
// If the surface is not initialized, the function returns immediately.
void glsurface_blitBuffer(int32_t paletteID);
void glsurface_blitBuffer();
#endif /* GLSURFACE_H_ */

34
source/build/src/glsurface.cpp
View file

@ -15,7 +15,7 @@ static void* buffer;
static GLuint bufferTexID;
static vec2_t bufferRes;
static GLuint paletteTexIDs[MAXBASEPALS];
static GLuint paletteTexID;
static GLuint quadVertsID = 0;
@ -97,6 +97,8 @@ bool glsurface_initialize(vec2_t inputBufferResolution)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, bufferRes.x, bufferRes.y, 0, GL_RED, GL_UNSIGNED_BYTE, 0);
glsurface_setPalette(curpalettefaded);
const char* const VERTEX_SHADER_CODE =
"#version 110\n\
\n\
@ -127,7 +129,7 @@ bool glsurface_initialize(vec2_t inputBufferResolution)
{\n\
vec4 color = texture2D(s_texture, v_texCoord.xy);\n\
color.r = c_paletteOffset + c_paletteScale*color.r;\n\
color = texture2D(s_palette, color.rg);\n\
color.rgb = texture2D(s_palette, color.rg).rgb;\n\
\n\
// DEBUG \n\
//color = texture2D(s_palette, v_texCoord.xy);\n\
@ -156,11 +158,6 @@ bool glsurface_initialize(vec2_t inputBufferResolution)
glUniform1i(texSamplerLoc, 0);
glUniform1i(paletteSamplerLoc, 1);
for (int basepalnum = 0; basepalnum < MAXBASEPALS; ++basepalnum)
{
glsurface_setPalette(basepalnum, basepaltable[basepalnum]);
}
return true;
}
@ -176,14 +173,14 @@ void glsurface_destroy()
glDeleteTextures(1, &bufferTexID);
bufferTexID = 0;
glDeleteTextures(MAXBASEPALS, paletteTexIDs);
memset(paletteTexIDs, 0, sizeof(paletteTexIDs));
glDeleteTextures(1, &paletteTexID);
paletteTexID = 0;
glDeleteProgram(shaderProgramID);
shaderProgramID = 0;
}
void glsurface_setPalette(int32_t paletteID, void* pPalette)
void glsurface_setPalette(void* pPalette)
{
if (!buffer)
return;
@ -191,15 +188,15 @@ void glsurface_setPalette(int32_t paletteID, void* pPalette)
return;
glActiveTexture(GL_TEXTURE1);
if (paletteTexIDs[paletteID])
if (paletteTexID)
{
glBindTexture(GL_TEXTURE_2D, paletteTexIDs[paletteID]);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 256, 1, GL_RGB, GL_UNSIGNED_BYTE, (void*) buffer);
// assume the texture is already bound to GL_TEXTURE1
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 256, 1, GL_RGBA, GL_UNSIGNED_BYTE, (void*) pPalette);
}
else
{
glGenTextures(1, paletteTexIDs+paletteID);
glBindTexture(GL_TEXTURE_2D, paletteTexIDs[paletteID]);
glGenTextures(1, &paletteTexID);
glBindTexture(GL_TEXTURE_2D, paletteTexID);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
@ -207,7 +204,7 @@ void glsurface_setPalette(int32_t paletteID, void* pPalette)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, 256, 1, 0, GL_RGB, GL_UNSIGNED_BYTE, pPalette);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 256, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, pPalette);
}
}
@ -221,14 +218,11 @@ vec2_t glsurface_getBufferResolution()
return bufferRes;
}
void glsurface_blitBuffer(int32_t paletteID)
void glsurface_blitBuffer()
{
if (!buffer)
return;
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, paletteTexIDs[paletteID]);
glActiveTexture(GL_TEXTURE0);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, bufferRes.x, bufferRes.y, GL_RED, GL_UNSIGNED_BYTE, (void*) buffer);

10
source/build/src/palette.cpp
View file

@ -660,11 +660,7 @@ void paletteSetColorTable(int32_t id, uint8_t const * const table)
Bmemcpy(basepaltable[id], table, 768);
#ifdef USE_OPENGL
if (videoGetRenderMode() == REND_CLASSIC)
{
glsurface_setPalette(id, basepaltable[id]);
}
else if (videoGetRenderMode() >= REND_POLYMOST)
if (videoGetRenderMode() >= REND_POLYMOST)
{
uploadbasepalette(id);
}
@ -746,6 +742,7 @@ void videoSetPalette(char dabrightness, uint8_t dapalid, uint8_t flags)
if (palsumdidchange || newpalettesum != g_lastpalettesum)
{
glsurface_setPalette(curpalettefaded);
// if ((flags&1) == 0)
videoUpdatePalette(0, 256);
}
@ -828,7 +825,10 @@ void videoFadePalette(uint8_t r, uint8_t g, uint8_t b, uint8_t offset)
uint32_t newpalettesum = XXH32((uint8_t *) curpalettefaded, sizeof(curpalettefaded), sizeof(curpalettefaded));
if (newpalettesum != lastpalettesum || newpalettesum != g_lastpalettesum)
{
glsurface_setPalette(curpalettefaded);
videoUpdatePalette(0, 256);
}
g_lastpalettesum = lastpalettesum = newpalettesum;
}

2
source/build/src/sdlayer.cpp
View file

@ -1820,7 +1820,7 @@ void videoShowFrame(int32_t w)
}
else
{
glsurface_blitBuffer(curbasepal);
glsurface_blitBuffer();
}
static uint32_t lastSwapTime = 0;