Attachment 84215 Details for Bug 68250 – Testcase

Testcase

glgeneratemipmap.c (text/plain), 1.74 KB, created by Mak Nazecic-Andrlon on 2013-08-19 00:57:15 UTC

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Filename:

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Creator: Mak Nazecic-Andrlon

Created: 2013-08-19 00:57:15 UTC

Size: 1.74 KB

patch

obsolete

>#include "SDL.h"
>#include "SDL_opengl.h"
>
>#include <string.h>
>
>#define WIDTH (768)
>#define HEIGHT WIDTH
>
>unsigned char pixels[WIDTH * HEIGHT * 4];
>
>int main(void)
>{
>    GLuint textureID;
>    int i, j;
>
>    SDL_Init(SDL_INIT_VIDEO);
>
>    SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
>    SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
>    SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
>    SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 0);
>    SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
>
>    SDL_SetVideoMode(640, 480, 24, SDL_OPENGL);
>
>    memset(pixels, 0xFF, sizeof(pixels));
>
>    glGenTextures(1, &textureID);
>    glBindTexture(GL_TEXTURE_2D, textureID);
>    glTexImage2D(GL_TEXTURE_2D, 0, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, WIDTH, HEIGHT, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
>    // glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, WIDTH, HEIGHT, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
>    glGenerateMipmap(GL_TEXTURE_2D);
>    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
>    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
>    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
>    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
>    // glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
>
>    glClear(GL_COLOR_BUFFER_BIT);
>    glEnable(GL_TEXTURE_2D);
>    glBindTexture(GL_TEXTURE_2D, textureID);
>
>    glBegin(GL_QUADS);
>        glTexCoord2f(0.f, 0.f);
>        glVertex2f(-1.f, -1.f);
>
>        glTexCoord2f(1.f, 0.f);
>        glVertex2f(1.f, -1.f);
>
>        glTexCoord2f(1.f, 1.f);
>        glVertex2f(1.f, 1.f);
>
>        glTexCoord2f(0.f, 1.f);
>        glVertex2f(-1.f, 1.f);
>    glEnd();
>
>    SDL_GL_SwapBuffers();
>    // Stay on the screen for a bit.
>    SDL_Delay(1000);
>
>    SDL_Quit();
>
>    return 0;
>}

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Attachments on bug 68250: 84215

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